The game is totally playable even on my hardware specs. Don't forget to use PROTON_USE_WINED3D=1 %command% as a launch option. It prevents game from freezing at random times. Also I want to add that the game does not launch (Steam > Library > Launch The Game > Status: Running > Status: Nothing (Any game is not running)) if I use X11 but Wayland. I don't have any clue how Wayland performed better at stability but this is the result.