Valve recently released a beta of Steam that runs natively on macOS. SteamOS is now available for non-Steam Deck devices like the Lenovo Legion Go S. Microsoft seems to be catching up by improving the performance of games on ROG Xbox Ally handhelds, but that's a different story.
Now if the article would only tell us exactly what “Proton” is. They should have done that right off the bat. The article goes on with a few hints, but no actual definition.
A Linux OS interests me but I haven’t been able to find any information on them that isn’t written in technogeek so that I could understand it.