Is there a way to set a max resolution for proton / WINE?

I have a 2k monitor, and every single game thinks I have a 4k monitor, so game resolutions are set way too high, and out of the game any menus or launchers are tiny. Using the Gnome/nvidia bazzite.

Gamescope fixes some things, but not others. The gnome desktop detects everything fine and is set up correctly.