I have a Framework 13 AMD - love it overall. I'm currently running opensuse with Plasma but would honestly be happy to switch DEs if this was possible elsewhere.
It has a moderately high resolution screen (2256x1504). For a lot of games the AMD can't quite keep up, but runs fine at lower resolutions. The problem is that most games will offer native resolution, but then offer "standard" resolutions below that rather than half native.
Is there a way (even if manually for each game) to tell Plasma (or GNOME if I have to go that route) to launch a game with half the screen resolution?
If gamescope misbehaves, proton-ge releases include wine fshack with fsr capabilities. Select proton-ge as the compatibility tool and add WINE_FULLSCREEN_FSR=1 %command% to the launch options.
Once in game, select any resolution you like, and it'll scale it using fsr to your display's resolution.