Risk of Rain 2

Using whatever the default proton version is.

In game settings:
Video:
Resolution: 1280x800, 60hz
Fullscreen: Yes
V-Sync: Always
FPS Limit: 60
Gamma Boost: 0
HUD Scale: 125%

Graphics:
Shadow Type: Hard
Shadow Resolution: Low
Shadow Cascade: 1
Shadow Distance: Low
UI Anti-Aliasing: Off
Texture Resolution: Quarter
VFX Culling Bias: Low
LOD Bias: Low
LOD Reduction: Off
Bloom: Off
SSAO: Off
Foliage Wind: Off
Sobel Lighting: On
Corpse Cleanup: Immediate
Max Corpses: 10

This is a work in progress, but so far it runs pretty good. Can probably shoot up the graphics a bit even.