Can confirm. Even pre-deck release, Proton was already working amazingly well for almost anything I could throw at it ( I think the last issue I had was with Fallout 76, but that may have been fate saving me and for the best ). I have a dedicated VM to gaming with Windows on it, but, well, I don't have to use it as much anymore. Gaming mostly stopped being an issue for Linux ( for me, I am sure some issues persist ).