Slight stuttering that can be felt when moving the mouse to look around. This wasn't fixed by DXVK_ASYNC=1 which usually fixes micro stutter issues like these.

When running the Native linux port the game would crash very quickly. The longest I got was about 5 seconds before a crash. I tried using other save files that I created when playing through proton but this didn't fix it. The only fix was using Proton.

When playing through Proton, the game would get stuck in the "mental sequence". After sacrificing the dog, you get teleported to a different location. However, the dog doesn't despawn correctly so you get teleported over and over so you can't move with the voice line "warm in here" repeating forever. I tried moving my save files to the native linux version and continuing from there, however, that version still crashed no matter which save I used.