You can install Heroic Games launcher, which is an alternative Epic + GOG front-end (it also works on Windows and is apparently better than the real thing). You can use it to manage the compatibility layers similarly to Steam, but in my experience its function is on a game-by-game basis
As another commenter has said, go through ProtonDB and check all the games you can't live without
Played it in the v6-7 days.
It introduces multiple new fleshed out factions with really good balancing. Obviously there isn't going to be a lot of voice acting for characters not in the movies, but that's a pretty minor setback, all things considered