Re: switch to an OS OS
Skyrim, Borderlands, and especially Saints' Row 3 all run fine on Linux Steam Proton. I don't have a modern graphics card, so can't really be sure if there's much of a performance hit from doing so, but they're doing fine so far.
Had some issues getting some of Skyrim's more esoteric mods to work, but that's more "mod authors don't have linux" than anything else.