Yeah modding is basically the same assuming you don’t have to use some kind of installer for them then it would be a bit more complicated, however I’d imagine using wine would solve that for the most part (haven’t installed mods through an installer on Linux so can’t speak much on that)
And also you might need to learn where Linux stores those game files but you can always just use steam to directly open the game folder
Basically all is fine, but Vortex etc might have some trouble. I was looking also about GOG (got some of my best games in there), but it seems that Wine is doing fine. CP2077 loses around 10% perf/5FPS, but is a price Im willing to pay just to shove it in the ass to microsoft