The effort is on the developer, targeting Proton means the developer writes the code once and can target Windows and Linux. If Valve wants to be the big gaming

The effort is on the developer, targeting Proton means the developer writes the code once and can target Windows and Linux. If Valve wants to be the big gaming platform for PC, the best they can do it improve Proton/Win32, and make it the official supported and preferred platform for their store games. Native Linux is too much of a moving target, and the fact that Win32 is so focused on backwards compatibility makes it a perfect platform to build games upon. I am a Linux gamer and I'd rather play the Proton version than chase missing libraries and broken audio which often affects bad native Linux ports. And the better Proton is, the longer we'll be able to play old games that are no longer compatible with newer Windows versions.