If steam ever gets to where proton is good enough to work with 99% of games and work with anticheat and stuff, Linux will immediately become my daily. I've used Linux for a long while (used to anyway), but now only use windows due to gaming.
Install it in a Windows VM, then copy the game's install directory to your Linux install. Might need to fiddle with Proton a bit, but should work fine.
Oh no. Lemmy keeps showing me things I need to look into for my move to Linux. No more FitGirl, or is it this game (among others of course) specifically?