Can you assign actions to keyboard shortcuts modifier+number (ie. super+3)?

[Bings]

You shouldn't need to use latte dock to do this. Go to Shorcuts in the settings, there an option to add an application (it's a button with a plus sign on 20.04), which makes an entry for assigning a shortcut to it.

[supsup]

I am using Latte dock and it has a function to launch applications on it by pressing super+ a number, according to the order of the apps on the launcher. But I found out it does not work for me. Then I noticed that if I try to assign for example super+3 to anything else, like launching Dolphin, it also does not work. I tried this on a clean profile with a test user profile in standard Plasma (no Latte) and it still does not work. I use a Czech keyboard so pressing 3 actually produces "š", but when I change my keyboard layout to English, nothing changes. This also applies to alt and ctrl and shift. Is that also happening for you? I tried looking for bugs but it does not seem to be reported.

I am on Kubuntu 21.10 and I installed Plasma 5.23 from the PPA, but as I said, I managed to reproduce this on a clean user profile.