Source is this video:
Windows Was The Problem All Along - Dave2D
We could obviously compare performance between windows and steamOS before on the steam deck, or between windows and Bazzite on other handhelds. But this is the first time we have had official windows and SteamOS builds for the same hardware.
Yeah its wine/proton and linux together. Wine/Proton efficiently handles translating the Windows programmes API calls into POSIX calls while Linux seems to offer a lower OS overhead so there is more system resource available for the games.
I do think Proton gets a little too much credit. Its wine plus faudio, dxvk and other open source projects combined. Proton is great but it is standing on the shoulders of giants.
Agreed. Proton is important as a bit of an “iPhone moment” where all this tech comes together in a way where non-techies “get it” in the sense where they understand why it’s useful, even if they’ll never bother to learn the details of why or how.
Why? Valve has been sponsoring all these projects for a really long time. While wine existed before that, it wouldn’t be anywhere near the shape thats its currently in because gaming was not its main focus. There have been loads of gaming bugs and sharp edges that have been around wine for a long time until Valve put in the money and devs to fix them.