[Pre-Install] Upgrade tries to remove essential apps like Konsole and Dolphin

[GGKazz]

Hello all,
I'm trying to upgrade from Kubuntu 25.10 to 26.04 LTS however the upgrade removes all kinds of essential apps like Konsole or Dolphin.

Remove (was auto installed) apport-core-dump-handler dolphin
  dolphin-plugins elisa gwenview haruna kate kde-spectacle kdeconnect
  konsole konsole-kpart libasound2-plugins
  libgstreamer-plugins-good1.0-0 libgusb2 libgvc6 libk3b-extracodecs
  libkf6texteditor-katepart libonnxruntime1.21 libplasma6
  libplasmaquick6 libqt6multimediawidgets6 libreoffice-kf6
  libreoffice-qt6 mesa-va-drivers mesa-va-drivers:i386
  mesa-vdpau-drivers mesa-vdpau-drivers:i386 neochat okular
  packagekit-tools phonon4qt5-backend-vlc phonon4qt5settings
  plasma-widgets-addons python3-fuse python3-sip
  qml6-module-org-kde-kirigamiaddons-labs-components
  qml6-module-qttexttospeech qt6-speech-speechd-plugin
  sddm-theme-breeze xwaylandvideobridge

A few weeks ago I did the upgrade and did not pay enough attention so after the upgrade I couldn't access my files or open de terminal. I figured I'd try again later so I reverted back using Timeshift. But now I have to upgrade in a few days so I'd like to be able to resolve the issue.

My system information:

OS: Kubuntu 25.10 (Questing Quokka) x86_64
Host: B850M GAMING X WIFI6E (Default string-CF-WCP-ADO)
Kernel: Linux 6.17.0-40-generic
Uptime: 1 hour
Packages: 2610 (dpkg), 6 (flatpak), 14 (snap)
Shell: bash 5.2.37
Display (Q27P1B): 2560x1440 @ 60 Hz in 27" [External]
Display (LG ULTRAGEAR): 2560x1440 @ 180 Hz in 27" [External, HDR] *
DE: KDE Plasma 6.4.5
WM: KWin (Wayland)
WM Theme: Breeze
Theme: Breeze (Light) [Qt], Breeze [GTK2/3]
Icons: Papirus-Dark [Qt], Papirus-Dark [GTK2/3/4]
Font: Noto Sans (10pt) [Qt], Noto Sans (10pt) [GTK2/3/4]
Cursor: breeze (24px)
Terminal: konsole 25.8.1
CPU: AMD Ryzen 7 9800X3D (16) @ 5.27 GHz
GPU: AMD Radeon RX 9070 XT [Discrete]
Memory: 3.79 GiB / 30.96 GiB (12%)
Swap: 0 B / 512.00 MiB (0%)
Disk (/): 561.59 GiB / 1.79 TiB (31%) - ext4

Let me know if you need any more information. Thank you.

[claydoh]

How are you launching the upgrade?

Are you fully updated before starting?

Do

sudo apt update

and

sudo apt upgrade

show any warnings or error messages?

Any PPAs added?

[die.boer]

please post outputs of

apt policy kubuntu-desktop

apt-mark showhold

grep -r ^deb /etc/apt/sources.list.d/

ubuntu-release-upgrader-qt

[GGKazz]

How are you launching the upgrade?

Are you fully updated before starting?

Do

sudo apt update

and

sudo apt upgrade

show any warnings or error messages?

Any PPAs added?

I have tried using the graphic updater on my taskbar and also using the terminal using

sudo do-release-upgrade

I get an error about foreign packages installed:

Foreign Packages Installed

The following unofficial packages are currently installed:

steam-libs-i386:i386.....Installed from: unknown origin


It is recommended to install supported versions from the Ubuntu
archive, and try the upgrade again.

Do you want to continue the upgrade anyways?

​

[GGKazz]

please post outputs of

apt policy kubuntu-desktop

apt-mark showhold

grep -r ^deb /etc/apt/sources.list.d/

ubuntu-release-upgrader-qt

apt policy kubuntu-desktop
kubuntu-desktop:
  Installed: 1.480
  Candidate: 1.496
  Version table:
     1.496 500
        500 http://nl.archive.ubuntu.com/ubuntu resolute/universe amd64 Packages
 *** 1.480 100
        100 /var/lib/dpkg/status

​

These two don't give any results

apt-mark showhold

grep -r ^deb /etc/apt/sources.list.d/

The last one gives an error:

ubuntu-release-upgrader-qt
ubuntu-release-upgrader-qt: command not found

​

[die.boer]

ok nothing looks funny there
i would suggest to start the release upgrade normally,again. When it gets to the point where it proposes removing Dolphin, Konsole, etc., stop there and don't continue. At that point, gather the logs from /var/log/dist-upgrade/, especially apt.log
post the logs here

[Snowhog]

Run the upgrade 'simulated' so you can see exactly what will be removed/installed.

sudo apt --simulate full-upgrade

What may be happening/wanting to happen, is the removal of packages so that the latest release of the same can occur with the OS upgrade.

[GGKazz]

Right, so I don't know exactly what has happened now... I did not expect anything different to happen so I'm trying to remember the exact steps I took.
I tried running sudo do-release-upgrade again but it told me that the system wasn't upgraded. So i ran sudo apt update and sudo apt upgrade again. It couldn't because apparently it was still running the upgrader. I might have accidentally closed it without ending the process there. I checked whether it was safe to close it and closed the process. Then I ran sudo dpkg --configure -a and sudo apt -f install. I then ran another sudo apt update and this time it wanted to update a lot. I let it update and rebooted and now it's running 26.04 LTS...
I do have wobbly windows and transparent inactive windows but most seems to be working well... Is there a way to check whether everything is correctly installed now? And maybe a way to check back what exactly happened?

[GGKazz]

So the system tells me it's running Kubuntu 26.04 LTS the rest doesn't seem to be updated:
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2
Kernel Version: 7.0.0-27-generic (64-bit)
Graphics Platform: Wayland

[claydoh]

And maybe a way to check back what exactly happened?

This usually means that updates were interrupted, or didn't complete for some reason - you would have sen an error message in apt or in Discover.

dpkg --configure -atries to finish the install process on any packages that did not completely install

apt -f install tries to install anything missing, especially useful after the first command, as those packages probably blocked the others from even starting to be installed.

These two don't give any results
grep -r ^deb /etc/apt/sources.list.d/

This shows any addon PPAs, though there are none. But this command does not show the important source.

ok nothing looks funny there

But the contents of the ubuntu sources file is missing:

/etc/apt/sources.list.d/ubuntu.sources
So, GGKazz can you post the contents of this?

I have a suspision that the Universe pocket may be missing? Unlike Ubuntu core OS and desktop packages, Kubuntu's are not in Main, but Universe. That could explain the correct kernel but the previous not-upgraded Plasma.

It should match this:

# Automatically generated by Calamares on 2026-04-14.
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of Kubuntu.
## Ubuntu distribution repository
##
## The following settings can be adjusted to configure which packages to use from Ubuntu.
## Mirror your choices (except for URIs and Suites) in the security section below to
## ensure timely security updates.
##
## Types: Append deb-src to enable the fetching of source package.
## URIs: A URL to the repository (you may add multiple URLs)
## Suites: The following additional suites can be configured
## <name>-updates - Major bug fix updates produced after the final release of the
## distribution.
## <name>-backports - software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
## Components: Aside from main, the following components can be added to the list
## restricted - Software that may not be under a free license, or protected by patents.
## universe - Community maintained packages.
## Software from this repository is only maintained and supported by Canonical
## for machines with Ubuntu Pro subscriptions. Without Ubuntu Pro, the Ubuntu
## community provides best-effort security maintenance.
## multiverse - Community maintained of restricted. Software from this repository is
## ENTIRELY UNSUPPORTED by the Ubuntu team, and may not be under a free
## licence. Please satisfy yourself as to your rights to use the software.
## Also, please note that software in multiverse WILL NOT receive any
## review or updates from the Ubuntu security team.
##
## See the sources.list(5) manual page for further settings.
Types: deb
URIs: http://au.archive.ubuntu.com/ubuntu/
Suites: resolute resolute-updates resolute-backports
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

## Ubuntu security updates. Aside from URIs and Suites,
## this should mirror your choices in the previous section.
Types: deb
URIs: http://security.ubuntu.com/ubuntu/
Suites: resolute-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

At least the lines without the "#" should be identical, outside the "au" part of the url in there, unless you are in Australia.

If you don't have this file, show the content of /etc/apt/souces.list

[GGKazz]

This usually means that updates were interrupted, or didn't complete for some reason - you would have sen an error message in apt or in Discover.

dpkg --configure -atries to finish the install process on any packages that did not completely install

apt -f install tries to install anything missing, especially useful after the first command, as those packages probably blocked the others from even starting to be installed.



This shows any addon PPAs, though there are none. But this command does not show the important source.



But the contents of the ubuntu sources file is missing:

/etc/apt/sources.list.d/ubuntu.sources
So, GGKazz can you post the contents of this?

I have a suspision that the Universe pocket may be missing? Unlike Ubuntu core OS and desktop packages, Kubuntu's are not in Main, but Universe. That could explain the correct kernel but the previous not-upgraded Plasma.

It should match this:

# Automatically generated by Calamares on 2026-04-14.
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of Kubuntu.
## Ubuntu distribution repository
##
## The following settings can be adjusted to configure which packages to use from Ubuntu.
## Mirror your choices (except for URIs and Suites) in the security section below to
## ensure timely security updates.
##
## Types: Append deb-src to enable the fetching of source package.
## URIs: A URL to the repository (you may add multiple URLs)
## Suites: The following additional suites can be configured
## <name>-updates - Major bug fix updates produced after the final release of the
## distribution.
## <name>-backports - software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
## Components: Aside from main, the following components can be added to the list
## restricted - Software that may not be under a free license, or protected by patents.
## universe - Community maintained packages.
## Software from this repository is only maintained and supported by Canonical
## for machines with Ubuntu Pro subscriptions. Without Ubuntu Pro, the Ubuntu
## community provides best-effort security maintenance.
## multiverse - Community maintained of restricted. Software from this repository is
## ENTIRELY UNSUPPORTED by the Ubuntu team, and may not be under a free
## licence. Please satisfy yourself as to your rights to use the software.
## Also, please note that software in multiverse WILL NOT receive any
## review or updates from the Ubuntu security team.
##
## See the sources.list(5) manual page for further settings.
Types: deb
URIs: http://au.archive.ubuntu.com/ubuntu/
Suites: resolute resolute-updates resolute-backports
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

## Ubuntu security updates. Aside from URIs and Suites,
## this should mirror your choices in the previous section.
Types: deb
URIs: http://security.ubuntu.com/ubuntu/
Suites: resolute-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

At least the lines without the "#" should be identical, outside the "au" part of the url in there, unless you are in Australia.

If you don't have this file, show the content of /etc/apt/souces.list

The ubuntu.sources file seems to match:

# Automatically generated by Calamares on 2025-04-29.
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of Kubuntu.
## Ubuntu distribution repository
##
## The following settings can be adjusted to configure which packages to use from Ubuntu.
## Mirror your choices (except for URIs and Suites) in the security section below to
## ensure timely security updates.
##
## Types: Append deb-src to enable the fetching of source package.
## URIs: A URL to the repository (you may add multiple URLs)
## Suites: The following additional suites can be configured
##   <name>-updates   - Major bug fix updates produced after the final release of the
##                      distribution.
##   <name>-backports - software from this repository may not have been tested as
##                      extensively as that contained in the main release, although it includes
##                      newer versions of some applications which may provide useful features.
##                      Also, please note that software in backports WILL NOT receive any review
##                      or updates from the Ubuntu security team.
## Components: Aside from main, the following components can be added to the list
##   restricted  - Software that may not be under a free license, or protected by patents.
##   universe    - Community maintained packages.
##                 Software from this repository is only maintained and supported by Canonical
##                 for machines with Ubuntu Pro subscriptions. Without Ubuntu Pro, the Ubuntu
##                 community provides best-effort security maintenance.
##   multiverse  - Community maintained of restricted. Software from this repository is
##                 ENTIRELY UNSUPPORTED by the Ubuntu team, and may not be under a free
##                 licence. Please satisfy yourself as to your rights to use the software.
##                 Also, please note that software in multiverse WILL NOT receive any
##                 review or updates from the Ubuntu security team.
##
## See the sources.list(5) manual page for further settings.
Types: deb
URIs: http://nl.archive.ubuntu.com/ubuntu
Suites: resolute resolute-updates resolute-backports
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

## Ubuntu security updates. Aside from URIs and Suites,
## this should mirror your choices in the previous section.
Types: deb
URIs: http://security.ubuntu.com/ubuntu/
Suites: resolute-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

The /etc/apt/souces.list contains the following:

## See sources.list(5) for more information, especialy
# Remember that you can only use http, ftp or file URIs
# CDROMs are managed through the apt-cdrom tool.​

Meanwhile Discover has about 1.7GiB of updates which give the following error:

Dependency resolution failed:

The following packages have unmet dependencies: phonon4qt5settings:
Depends: libphonon4qt5-4t64 (= 4:4.12.0-5) but 4:4.12.0-7 is to be installed
libgvplugin-gd8: Breaks: libgvc6 (< 8.1.0-1~) but 2.42.4-3build2 is to be
installed packagekit-tools: Depends: packagekit (= 1.3.1-1ubuntu1.1) but
1.3.4-3ubuntu1.1 is to be installed mesa-libgallium: Breaks: mesa-va-drivers
(< 25.2.8-3) Breaks: mesa-vdpau-drivers (< 25.2.8-3) Breaks: mesa-va-drivers
(< 25.2.8-3) Breaks: mesa-vdpau-drivers (< 25.2.8-3) mesa-libgallium: Breaks:
mesa-va-drivers (< 25.2.8-3) Breaks: mesa-vdpau-drivers (< 25.2.8-3) Breaks:
mesa-va-drivers (< 25.2.8-3) Breaks: mesa-vdpau-drivers (< 25.2.8-3)
python3-fuse: Depends: python3 (< 3.14) but 3.14.3-0ubuntu2 is to be
installed libonnxruntime1.21: Depends: libre2-11-absl20240722 Depends:
libonnxruntime-providers (= 1.21.0+dfsg-2) but 1.23.2+dfsg-6ubuntu1 is to
be installed libgvplugin-pango8: Breaks: libgvc6 (< 8.1.0-1~) but
2.42.4-3build2 is to be installed mesa-va-drivers: Depends: mesa-libgallium
(= 25.2.8-0ubuntu0.25.10.2) but 26.0.3-1ubuntu1 is to be installed mesa-va-drivers:
Depends: mesa-libgallium (= 25.2.8-0ubuntu0.25.10.2) but
26.0.3-1ubuntu1 is to be installed libavcodec-extra62: Conflicts:
libavcodec62 Conflicts: libavcodec62 libgstreamer-plugins-extra1.0-0:
Breaks: libgstreamer-plugins-good1.0-0 (< 1.28.0-1ubuntu3) but
1.26.5-1ubuntu2.3 is to be installed python3-sip: Depends: python3 (< 3.14)
but 3.14.3-0ubuntu2 is to be installed libgusb2a: Breaks: libgusb2
(< 0.4.9-6~) but 0.4.9-1 is to be installed libplasma7: Breaks: libplasma6 but
6.4.5-0ubuntu1 is to be installed xwaylandvideobridge: Depends:
qt6-base-private-abi (= 6.9.2) phonon4settings: Breaks: phonon4qt5settings but
4:4.12.0-5 is to be installed  ​

[claydoh]

Yeah, you still have 25.10 packages in the mix for some reason.
I have no idea what still would want the libphonon4qt5-4t64, which is rather outdated and not used in a while.


But this one pops out

libgvc6 does not exist any longer.
libgvplugin-gd8 breaks it
Both are part of Grpahviz


Aaand I am lost. And a bit slweepy. Maybe someone else can see something.


Please try runnniong sudo apt update and posting the output, so we can see what repos it hits, and any messaging.

Also, sudo apt full-upgrade, at least to show more of the content that preceeds what discover's error message provided, at least a little bit (it may be very long), as well as the full list of what it wants to install, remove.

If neither of the above mention any packages no longer needed and suggest things for autoremove, please see what sudo apt autoremove shows. Don't necessarily go through with it, but show the full list if things wanting to be auto-removed.

[GGKazz]

Yeah, you still have 25.10 packages in the mix for some reason.
I have no idea what still would want the libphonon4qt5-4t64, which is rather outdated and not used in a while.


But this one pops out

libgvc6 does not exist any longer.
libgvplugin-gd8 breaks it
Both are part of Grpahviz


Aaand I am lost. And a bit slweepy. Maybe someone else can see something.


Please try runnniong sudo apt update and posting the output, so we can see what repos it hits, and any messaging.

Also, sudo apt full-upgrade, at least to show more of the content that preceeds what discover's error message provided, at least a little bit (it may be very long), as well as the full list of what it wants to install, remove.

If neither of the above mention any packages no longer needed and suggest things for autoremove, please see what sudo apt autoremove shows. Don't necessarily go through with it, but show the full list if things wanting to be auto-removed.

I appreciate all the help, I am not experienced enough yet to know exactly what those packages do. When I run sudo apt update I get the following:

sudo apt update
[sudo: authenticate] Password:                    
Hit:1 http://nl.archive.ubuntu.com/ubuntu resolute InRelease
Hit:2 http://nl.archive.ubuntu.com/ubuntu resolute-updates InRelease                
Hit:3 http://nl.archive.ubuntu.com/ubuntu resolute-backports InRelease              
Hit:4 http://security.ubuntu.com/ubuntu resolute-security InRelease                
594 packages can be upgraded. Run 'apt list --upgradable' to see them.

When i run sudo apt full-upgrade I get the following:

The following packages were automatically installed and are no longer required:
  gcc-15-base:i386                libboost-thread1.83.0  libgts-bin               libopencore-amrwb0:i386  libvpx9:i386
  gtk2-engines-pixbuf             libcap2:i386           libjbig0:i386            libpoppler-cpp2          libx264-164:i386
  libann0                         libcdt5                libjpeg-turbo8:i386      libprotobuf-c1           networkd-dispatcher
  libaribb24-0t64:i386            libcgraph6             libjpeg8:i386            libsframe2               python3-sip
  libavcodec-extra61:i386         libclang-cpp20         liblab-gamut1            libsqlite3-0:i386        python3.13-gdbm
  libavdevice61                   libclang1-20           libllvm20                libswresample5:i386      vdpau-driver-all
  libavutil59:i386                libcrypt-dev           libllvm20:i386           libtheora0               vdpau-driver-all:i386
  libboost-chrono1.83.0t64        libdeflate0:i386       libmjpegutils-2.1-0t64   libtheoradec1:i386       xserver-xorg-video-vmware
  libboost-filesystem1.83.0       libgav1-1              libmpeg2encpp-2.1-0t64   libtheoraenc1:i386
  libboost-filesystem1.88.0       libgdk-pixbuf2.0-bin   libmplex2-2.1-0t64       libtiff6:i386
  libboost-program-options1.83.0  libgts-0.7-5t64        libopencore-amrnb0:i386  libvo-amrwbenc0:i386
Use 'sudo apt autoremove' to remove them.

Get more security updates through Ubuntu Pro with 'esm-apps' enabled:
  libavcodec-extra libavdevice62 ffmpeg libopenexr-3-1-30 libavcodec62
  libavcodec62 gocryptfs libavfilter11 libavutil60 libavutil60 libswscale9
  libswresample6 libswresample6 libavformat62
Learn more about Ubuntu Pro at https://ubuntu.com/pro
Upgrading:
  colord                    libegl-mesa0       libgbm1:i386          libgstreamer-plugins-bad1.0-0  mesa-libgallium:i386
  graphviz                  libegl-mesa0:i386  libgl1-mesa-dri       libonnxruntime-providers       packagekit
  gstreamer1.0-plugins-bad  libfprint-2-2      libgl1-mesa-dri:i386  libre2-11
  gstreamer1.0-vaapi        libfprint-2-tod1   libglx-mesa0          libspa-0.2-modules-extra
  libcolorhug2              libgbm1            libglx-mesa0:i386     mesa-libgallium

Installing dependencies:
  gstreamer1.0-plugins-extra       libgusb2a        libgvplugin-pango8   libmplex2-2.2-0           libxdot4
  libfarmhash0                     libgvc7          libmjpegutils-2.2-0  libonnxruntime1.23
  libgstreamer-plugins-extra1.0-0  libgvplugin-gd8  libmpeg2encpp-2.2-0  libtensorflow-lite2.14.1

Not upgrading:
  apparmor-utils            libkf6notifications6              libreoffice-qt6
  ark                       libkf6notifyconfig-data           libreoffice-uiconfig-calc
  assistant-qt6             libkf6notifyconfig6               libreoffice-uiconfig-common
  baloo6                    libkf6package-data                libreoffice-uiconfig-draw
  bluedevil                 libkf6package6                    libreoffice-uiconfig-impress
  breeze                    libkf6parts-data                  libreoffice-uiconfig-math
  breeze-cursor-theme       libkf6parts6                      libreoffice-uiconfig-writer
  breeze-wallpaper          libkf6people-data                 libreoffice-writer
  bup                       libkf6people6                     libsane-hpaio
  designer-qt6              libkf6peoplebackend6              libsmbclient0
  dolphin                   libkf6prison6                     libsnapd-qt-2-1
  dolphin-data              libkf6prisonscanner6              libtaskmanager6
  dolphin-plugins           libkf6pty-data                    libuno-cppu3t64
  drkonqi                   libkf6pty6                        libuno-cppuhelpergcc3-3t64
  elisa                     libkf6purpose-bin                 libuno-sal3t64
  ffmpegthumbs              libkf6purpose-data                libuno-salhelpergcc3-3t64
  frameworkintegration6     libkf6purpose6                    libweather-ion7
  gir1.2-glib-2.0           libkf6purposewidgets6             linguist-qt6
  gwenview                  libkf6runner6                     milou
  haruna                    libkf6screen8                     neochat
  hplip                     libkf6screendpms8                 okular
  hplip-data                libkf6service-bin                 okular-data
  kaccounts-providers       libkf6service-data                okular-extra-backends
  kactivitymanagerd         libkf6service6                    partitionmanager
  kamera                    libkf6solid-data                  plasma-activities-bin
  kate                      libkf6solid6                      plasma-browser-integration
  kcalc                     libkf6sonnet-data                 plasma-calendar-addons
  kcharselect               libkf6sonnetcore6                 plasma-dataengines-addons
  kde-cli-tools             libkf6sonnetui6                   plasma-desktop
  kde-cli-tools-data        libkf6statusnotifieritem-data     plasma-desktop-data
  kde-config-flatpak        libkf6statusnotifieritem6         plasma-desktoptheme
  kde-config-gtk-style      libkf6style6                      plasma-discover
  kde-config-plymouth       libkf6su-bin                      plasma-discover-backend-flatpak
  kde-config-screenlocker   libkf6su-data                     plasma-discover-backend-fwupd
  kde-config-sddm           libkf6su6                         plasma-discover-backend-snap
  kde-config-tablet         libkf6svg6                        plasma-discover-common
  kde-config-updates        libkf6syndication6                plasma-discover-notifier
  kde-inotify-survey        libkf6syntaxhighlighting-data     plasma-disks
  kde-spectacle             libkf6syntaxhighlighting6         plasma-firewall
  kde-style-breeze          libkf6texteditor-bin              plasma-integration
  kde-style-breeze-data     libkf6texteditor-data             plasma-nm
  kde-style-breeze-qt5      libkf6texteditor-katepart         plasma-pa
  kde-style-oxygen-qt6      libkf6texteditor6                 plasma-runners-addons
  kdeconnect                libkf6texttemplate6               plasma-session-wayland
  kdeconnect-libs           libkf6textwidgets-data            plasma-systemmonitor
  kded6                     libkf6textwidgets6                plasma-theme-oxygen
  kdegraphics-thumbnailers  libkf6threadweaver6               plasma-thunderbolt
  kdenetwork-filesharing    libkf6unitconversion-data         plasma-vault
  kdeplasma-addons-data     libkf6unitconversion6             plasma-wallpapers-addons
  kdialog                   libkf6userfeedback-doc            plasma-welcome
  kdoctools6                libkf6userfeedbackcore6           plasma-widgets-addons
  keditbookmarks            libkf6userfeedbackwidgets6        plasma-workspace
  kgamma                    libkf6wallet-data                 plasma-workspace-data
  kglobalacceld             libkf6wallet6                     polkit-kde-agent-1
  khelpcenter               libkf6walletbackend6              powerdevil
  kimageformat6-plugins     libkf6widgetsaddons-data          powerdevil-data
  kinfocenter               libkf6widgetsaddons6              print-manager
  kio-admin                 libkf6windowsystem-data           printer-driver-hpcups
  kio-audiocd               libkf6windowsystem6               pyqt6-dev-tools
  kio-extras                libkf6xmlgui-data                 python3
  kio-extras-data           libkf6xmlgui6                     python3-apparmor
  kio-fuse                  libkfontinst6                     python3-apt
  kio6                      libkfontinstui6                   python3-bcrypt
  kmahjongg                 libkglobalacceld0                 python3-brlapi
  kmenuedit                 libkirigami-data                  python3-cairo
  konsole                   libkirigami6                      python3-cffi-backend
  konsole-kpart             libkirigamiaddonsstatefulapp6     python3-cups
  kpackagetool6             libkirigamidelegates6             python3-dbus
  kpat                      libkirigamidialogs6               python3-dbus.mainloop.pyqt6
  krdc                      libkirigamilayouts6               python3-evdev
  kscreen                   libkirigamilayoutsprivate6        python3-gi
  ksshaskpass               libkirigamiplatform6              python3-gi-cairo
  ksystemlog                libkirigamipolyfill6              python3-ldb
  ksystemstats              libkirigamiprimitives6            python3-libapparmor
  kubuntu-desktop           libkirigamiprivate6               python3-lxml
  kunifiedpush              libkirigamitemplates6             python3-minimal
  kwallet6                  libklipper6                       python3-netifaces
  kwalletmanager            libkmahjongg6                     python3-pil
  kwayland6-data            libkmpris6                        python3-pylibacl
  kwin-addons               libkpipewire-data                 python3-pyqt6
  kwin-common               libkpipewire6                     python3-pyqt6.qtqml
  kwin-data                 libkpipewiredmabuf6               python3-pyqt6.qtquick
  kwin-decoration-oxygen    libkpipewirerecord6               python3-pyqt6.sip
  kwin-style-aurorae        libkpmcore13                      python3-pyxattr
  kwin-style-breeze         libkquickcontrolsprivate0         python3-samba
  kwin-wayland              libksane-data                     python3-setproctitle
  kwrited                   libksanecore6-1                   python3-systemd
  layer-shell-qt            libksanewidgets6-6                python3-talloc
  libadwaita-1-0            libkscreen-bin                    python3-tdb
  libavcodec-extra          libkscreen-data                   python3-uno
  libbaloowidgets-bin       libkscreenlocker6                 python3-websockets
  libbatterycontrol6        libksysguard-bin                  python3-yaml
  libboost-python1.88.0     libksysguard-data                 qdbus-qt6
  libcalamares3.3           libksysguardformatter2            qdoc-qt6
  libcalamaresui3.3         libksysguardsensorfaces2          qml6-module-org-kde-activities
  libdolphinvcs6            libksysguardsensors2              qml6-module-org-kde-baloo
  libglib2.0-0t64           libksysguardsystemstats2          qml6-module-org-kde-bluezqt
  libglib2.0-0t64:i386      libkunifiedpush-data              qml6-module-org-kde-breeze
  libglib2.0-bin            libkunifiedpush1                  qml6-module-org-kde-config
  libgtk-4-1                libkwaylandclient6                qml6-module-org-kde-coreaddons
  libgtk-4-bin              libkwin6                          qml6-module-org-kde-desktop
  libhpmud0                 libkworkspace6-6                  qml6-module-org-kde-draganddrop
  libk3b-extracodecs        liblayershellqtinterface6         qml6-module-org-kde-graphicaleffects
  libk3b8t64                libldb2                           qml6-module-org-kde-guiaddons
  libkaccounts6-2           libnotificationmanager1           qml6-module-org-kde-iconthemes
  libkcddb6-5               libokular6core4                   qml6-module-org-kde-kcmutils
  libkcompactdisc6-5        liboxygenstyle6-6                 qml6-module-org-kde-kdeconnect
  libkdcrawqt6-5            liboxygenstyleconfig6-6           qml6-module-org-kde-kholidays
  libkdecorations3-6        libphonon4qt5-4t64                qml6-module-org-kde-kirigami
  libkdecorations3private2  libplasma-geolocation-interface6  qml6-module-org-kde-kirigamiaddons-components
  libkdegames6-6            libplasma5support-data            qml6-module-org-kde-kirigamiaddons-datetime
  libkdegames6-i18n         libplasma5support6                qml6-module-org-kde-kirigamiaddons-delegates
  libkexiv2qt6-0            libplasmaactivitiesstats1         qml6-module-org-kde-kirigamiaddons-formcard
  libkf6archive-data        libpoppler-qt6-3t64               qml6-module-org-kde-kirigamiaddons-labs-components
  libkf6archive6            libpowerdevilcore2                qml6-module-org-kde-kirigamiaddons-settings
  libkf6attica6             libprocesscore10                  qml6-module-org-kde-kirigamiaddons-statefulapp
  libkf6auth-data           libpython3-stdlib                 qml6-module-org-kde-kirigamiaddons-tableview
  libkf6authcore6           libqcoro6core0t64                 qml6-module-org-kde-kirigamiaddons-treeview
  libkf6baloo6              libqcoro6dbus0t64                 qml6-module-org-kde-kitemmodels
  libkf6balooengine6        libqmobipocket6-3                 qml6-module-org-kde-kquickcontrols
  libkf6baloowidgets6       libqt6bluetooth6                  qml6-module-org-kde-kquickcontrolsaddons
  libkf6bluezqt-data        libqt6bluetooth6-bin              qml6-module-org-kde-kquickimageeditor
  libkf6bluezqt6            libqt6concurrent6                 qml6-module-org-kde-ksvg
  libkf6bookmarks-data      libqt6core5compat6                qml6-module-org-kde-ksysguard
  libkf6bookmarks6          libqt6core6t64                    qml6-module-org-kde-kwindowsystem
  libkf6bookmarkswidgets6   libqt6dbus6                       qml6-module-org-kde-networkmanager
  libkf6breezeicons6        libqt6designer6                   qml6-module-org-kde-newstuff
  libkf6calendarevents6     libqt6designercomponents6         qml6-module-org-kde-notifications
  libkf6codecs-data         libqt6gui6                        qml6-module-org-kde-people
  libkf6codecs6             libqt6help6                       qml6-module-org-kde-pipewire
  libkf6colorscheme-data    libqt6labsplatform6               qml6-module-org-kde-plasma-plasma5support
  libkf6colorscheme6        libqt6location6                   qml6-module-org-kde-prison
  libkf6completion-data     libqt6multimedia6                 qml6-module-org-kde-purpose
  libkf6completion6         libqt6multimediawidgets6          qml6-module-org-kde-quickcharts
  libkf6config-bin          libqt6network6                    qml6-module-org-kde-sonnet
  libkf6config-data         libqt6opengl6                     qml6-module-org-kde-syntaxhighlighting
  libkf6configcore6         libqt6openglwidgets6              qml6-module-org-kde-userfeedback
  libkf6configgui6          libqt6pdf6                        qml6-module-qt-labs-animation
  libkf6configqml6          libqt6positioning6                qml6-module-qt-labs-folderlistmodel
  libkf6configwidgets-data  libqt6positioning6-plugins        qml6-module-qt-labs-platform
  libkf6configwidgets6      libqt6positioningquick6           qml6-module-qt-labs-qmlmodels
  libkf6contacts-data       libqt6printsupport6               qml6-module-qt5compat-graphicaleffects
  libkf6contacts6           libqt6qml6                        qml6-module-qtcore
  libkf6coreaddons-data     libqt6qmlmeta6                    qml6-module-qtlocation
  libkf6coreaddons6         libqt6qmlmodels6                  qml6-module-qtmultimedia
  libkf6crash6              libqt6qmlnetwork6                 qml6-module-qtnetwork
  libkf6dbusaddons-bin      libqt6qmlworkerscript6            qml6-module-qtpositioning
  libkf6dbusaddons-data     libqt6quick3d6                    qml6-module-qtqml
  libkf6dbusaddons6         libqt6quick3druntimerender6       qml6-module-qtqml-models
  libkf6declarative-data    libqt6quick3dutils6               qml6-module-qtqml-workerscript
  libkf6dnssd-data          libqt6quick6                      qml6-module-qtqml-xmllistmodel
  libkf6dnssd6              libqt6quickcontrols2-6            qml6-module-qtquick
  libkf6doctools6           libqt6quickshapes6                qml6-module-qtquick-controls
  libkf6filemetadata-bin    libqt6quicktemplates2-6           qml6-module-qtquick-dialogs
  libkf6filemetadata-data   libqt6quickwidgets6               qml6-module-qtquick-effects
  libkf6filemetadata3       libqt6sensors6                    qml6-module-qtquick-layouts
  libkf6globalaccel-data    libqt6serialport6                 qml6-module-qtquick-particles
  libkf6globalaccel6        libqt6shadertools6                qml6-module-qtquick-shapes
  libkf6guiaddons-bin       libqt6sql6                        qml6-module-qtquick-templates
  libkf6guiaddons-data      libqt6sql6-sqlite                 qml6-module-qtquick-tooling
  libkf6guiaddons6          libqt6svg6                        qml6-module-qtquick-virtualkeyboard
  libkf6holidays-data       libqt6svgwidgets6                 qml6-module-qtquick-window
  libkf6holidays6           libqt6test6                       qml6-module-qtquick3d
  libkf6i18n-data           libqt6texttospeech6               qml6-module-qttexttospeech
  libkf6i18n6               libqt6uitools6                    qml6-module-qtwebchannel
  libkf6i18nlocaledata6     libqt6virtualkeyboard6            qml6-module-qtwebengine
  libkf6i18nqml6            libqt6waylandclient6              qml6-module-qtwebview
  libkf6iconthemes-bin      libqt6waylandcompositor6          qt6-documentation-tools
  libkf6iconthemes-data     libqt6webchannel6                 qt6-gtk-platformtheme
  libkf6iconthemes6         libqt6webchannelquick6            qt6-image-formats-plugins
  libkf6iconwidgets6        libqt6webengine6-data             qt6-l10n-tools
  libkf6idletime6           libqt6webenginecore6              qt6-location-plugins
  libkf6itemmodels6         libqt6webenginecore6-bin          qt6-qpa-plugins
  libkf6itemviews-data      libqt6webenginequick6             qt6-speech-speechd-plugin
  libkf6itemviews6          libqt6webenginewidgets6           qt6-svg-plugins
  libkf6jobwidgets-data     libqt6websockets6                 qt6-tools-dev-tools
  libkf6jobwidgets6         libqt6webview6                    qt6-wayland
  libkf6kcmutils-bin        libqt6widgets6                    samba
  libkf6kcmutils-data       libqt6wlshellintegration6         samba-common-bin
  libkf6kcmutils6           libqt6xml6                        samba-libs
  libkf6kcmutilscore6       libquickcharts1                   sddm
  libkf6kcmutilsquick6      libquickchartscontrols1           signon-kwallet-extension
  libkf6kiocore6            libquotientqt6-0.9                skanlite
  libkf6kiofilewidgets6     libreoffice-base-core             skanpage
  libkf6kiogui6             libreoffice-calc                  smbclient
  libkf6kiowidgets6         libreoffice-common                sonnet6-plugins
  libkf6networkmanagerqt6   libreoffice-core                  systemsettings
  libkf6newstuff-data       libreoffice-draw                  uno-libs-private
  libkf6newstuffcore6       libreoffice-impress               ure
  libkf6newstuffwidgets6    libreoffice-kf6                   xdg-desktop-portal-kde
  libkf6notifications-data  libreoffice-math

REMOVING:
  libgstreamer-plugins-good1.0-0  libgvc6             mesa-va-drivers       mesa-vdpau-drivers       packagekit-tools
  libgusb2                        libonnxruntime1.21  mesa-va-drivers:i386  mesa-vdpau-drivers:i386

Summary:
  Upgrading: 22, Installing: 13, Removing: 9, Not Upgrading: 572
2 standard LTS security updates
  Download size: 0 B / 37,7 MB
  Space needed: 2.774 kB / 1.264 GB available

[die.boer]

But the contents of the ubuntu sources file is missing:

/etc/apt/sources.list.d/ubuntu.sources

My earlier suggestion using grep -r ^deb was aimed at the older .list format and would indeed miss repositories defined in .sources files. My bad