@grotaclas - Good information! We've of course tested the launcher on both Ubuntu 20.04 and 22.04, but we don't seem to have any machine on which we can repro the bug... yet! The fact that it doesn't seem to be dependent on flatpak points to driver rather than lib incompatibilities. The fact that nouveau also gives problems is a complicating factor though!
We're still on the case though. Eventually we'll figure out what's wrong!
While you are doing this could you also please take a look at High DPI support on Linux? The launcher still can't handle it: https://forum.paradoxplaza.com/foru...oes-not-scale-properly.1567049/#post-29066157