Slick! Worth noting that Baldurs Gate 3 runs fine through Proton already - I played it on Linux at release with zero issues.
Occasionally I do still run things under Windows though like Cyberpunk 2077 as I got about 15 more frames under Windows which let me bump the graphics up a bit more.
Or Assassin's Creed Mirage which got me double the FPS somehow. Currently playing AssCree Shadows on Windows too as it just refuses to run at all via Proton. Other people seem to get it running fine so I dunno why I can't. Ah well.
In hindsight, I really didn't need Windows, but I was impatient.
[1]: https://baldursgate3.game/news/room-temperature-fix-33-now-l...