

Edit: I forgot to even mention, this explaination is for running windows apps on linux with steam (which is a native linux app available in essentially all repositories).
You can run most games (regardless of how you acquired them) directly in steam via proton.
If the app you want to run is a windows executable (.exe or .msi or whatever), you can add it as a “Non-Steam game” (even if it isn’t a game).
If you have trouble getting it started, try changing the compatibility layer in library -> game -> properties -> compatibility -> enable steam play compatibility tool -> choose some version of proton (like proton experimental)
Fair warning: Valve is currently chill about adding games to steam without proof of purchase, but they could change their minds someday.
Also, pro tip, if you really wanna get in the weeds with proton, I recommend proton-tricks. There are very few windows apps you can’t get running with proton and proton-tricks.








I had to look up “Panopticon”… What a sick metaphor