

Quake3 and Overload (only sortof FPS) are the ones I play. Both have plenty of community servers and also community games. And both have linux native versions that run without wine. I’m by no means an expert in this area nor do I have a vast knowledge of what people play these days. Just sharing what I like.
I see you made a comment in https://github.com/ValveSoftware/gamescope/issues/1913 . Did you try vkcube like someone earlier in that issue? And the other workarounds like
--expose-wayland
?Also what version of gamescope? And you don’t happen to be running steam as a flatpak do you?
EDIT: they JUST released a new version https://github.com/ValveSoftware/gamescope/compare/3.16.14...3.16.15 . So if you are having issues downgrading might be worth a try, but I haven’t been able to reproduce the issues you are having.
Also, I know it sounds weird for a linux machine, but update and restart just to rule anything weird out. I’ve had steam and steam related applications leave around weird state, processes, etc. before and restarting is an easy way to clear that all out and start fresh, eliminating variables.