SUMMARY Cs:Go set to fullscreen-windowed, plasma taskbar visible atop. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Kde Neon Plasma 6.0.3 X11 KDE Plasma Version: 6.0.3 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.2 ADDITIONAL INFORMATION X11, Optimus NVidia/Amd
Maybe worth noting that steam is running as a different user and sharing the X11 session via xhost permissions.
Created attachment 167871 [details] Screenshot
I just realized this only happens after alt-tabbing away from the game and then back.