Trying to boot the game either through Proton Experimental, or the native Linux binary, gets me into the launcher fine, but in-game, I get to the bird loading circle, where some renderer seems to come in and stop the screen from updating. The circle incl. bird go completely white, and the steam notification in the bottom right of the screen doesn't go away either. it's like its rendering new frames on top of old ones without clearing. Audio continues to play, I'd assume I'd be able to "play" albeit without seeing anything if i tried to click through menus blind.