The Duff CEO with a Windows-Logo on his forehead: "Gamers use Windows because of its' user experience not our de facto monopoly."
Next Image: Duff CEO with Windows-Logo in front of a "Out of Business" sign. Subtitle: "30 minutes after SteamOS is released"
Edit: Yo, I'm not saying this is gonna happen. I just want to say that Windew's UX sucks ass.
Steam on Linux already does exactly that. You hit play and that's it, exactly like on Windows. The rest is done for you automatically.
Tinkering might be required with a few non-Steam games and programs, but for the most part, they just work as well.
For the most part that's true, but when something goes wrong, it really goes wrong.
For example, I wanted to play Path of Exile 2, and it would get stuck at a black screen on startup. The fix is "easy" on Windows, you just edit an ini file in "My Documents". To fix it on Linux, that same file is stored in
/home/[YOUR USERNAME]/.local/share/Steam/steamapps/compatdata/2694490/pfx/drive_c/users/steamuser/Documents/My Games/Path of Exile 2/poe2_production_Config.ini
Which is insane by any standard.
And lets be honest, it is not as if tinkering isn't required for a lot of things on Windows too, it is just that the tinkering is a lot more random "hope & pray" stuff like uninstalling and reinstalling things, rebooting,... and hoping the problem goes away.