Filtering the list for linux will only show games with native versions. As far as I know, Satisfactory doesn’t have one so you will have to use proton. Go into the steam settings and enable proton for all games. Or if you don’t want to enable it for your whole library, go into the game settings in your steam library and activate it for each game.

IMO, just ignore the grading system and have fun. Once you’re hooked enough and actually want to improve, that’s when you will want to start paying attention to it.