When I wanted to continue playing the game after I successfully used it the first time, the game dropped me off in a freezed Main menu. The only thing that was working was the mouse. Clicking the menu buttons didn't work. The buttons didn't even lit up when hovering over them. Had to close the game from the Steam overlay. Tried several other Proton versions and eventually a re-install of the game, nothing helped... Finished it on Win11 (not without problems, but that's another story)