One thing that we need to remember is that a certain Gabe Newell(Valve Inc) made it possible to run games on Windows, when at the time even Microsoft were not interested in making this happen or thought it was possible for Games to be run on Windows, now bear in mind this was in 1985.
35 years later, and again, Gabe and his team started campaigning for Linux to become a gaming platform, hence why we have SteamOS, WINE and I am not sure what else, however the adaption of Linux as a gaming platform has actually progressed WAY faster and more efficiently thanit ever did with Windows.
@SauRoNZA will most likely know a bit more regarding Linux use and Consoles, but on the Desktop side of things I do think that it was adapted quickly when compared to Windows, it is just matter of dev houses porting games to run natively in Linux without the need for emulation. I do believe this is already happening with certain games, like Witcher(I think this game will run natively without WINE?)
A cool idea for a gaming friendly version of Linux, would be a simplified CLI, and maybe the ability to monitor your PC use stats real time within terminal...though i find stuff like that anoracky and cool.
Though correct me if I am wrong, way back then if you wanted to play video games you needed a console...unless you wanted to play Pong.
Afaik there is no option yet to enable proton in steamos unless you go into the config files. Might as well just use mint or whatever other flavor and install steam then run it in big picture mode.
To all the naysayers. Valve's version of Wine is working wonders for windows games on Linux. Most of the games i've tried work and with DXVK you get near native performance. I was playing dark souls 3 on a pentium G4400 with 4Gig ram and a rx 470. I didn't check the fps but it ran just fine with no stuttering or frame drops. I'm at 260 hours played..