It's been 30 years. This was nothing but a pipedream before Proton came along. It's probably still a pipedream, but at least we'll be able to play more games on Linux now. Don't let perfect get in the way of good.
There's never going to be a mass exodus to Linux. People have been promising the year of the Linux desktop for as long as Linux has been a thing. It's time to find a way to coexist, and Proton is so far one of the best solutions for gaming.
It was more than a pipe dream. The mobile game revolution happened long before proton. Windows penetration in mobile gaming is <1%. Now we have some interesting Mac chips that will require cross-platform development too. And many of the best linux games (KSP) were popular before proton. WINE/Proton is a force, but is not the only player in the cross-platform gaming space.
There's never going to be a mass exodus to Linux. People have been promising the year of the Linux desktop for as long as Linux has been a thing. It's time to find a way to coexist, and Proton is so far one of the best solutions for gaming.