lightnsfwAre previously downloaded Steam games transferable from Windows to Linux?
For proton games, yes. I still have some games in my old windows installation and they work just fine.
If you manually set your games to use proton, that will work for all of them. For the ones that have a native linux version, steam will detect that you have the windows version and download the extra files needed for the linux version automatically.
Uninvited GuestMy uncertainty with copying a Windows install over to Linux has to do with proton/wine prefixes. From my understanding, when installing a game using proton it gets its own prefix installed along with it.
How does that work when copying a game over and adding a non-steam game to Steam? Does adding the exe to Steam create the prefix automatically?
BjörnThe prefix is created on first run. The game files do not reside in the prefix.