And this is the point when you have to stop, we got it, you are a Windows fanboy, its OK, I use both W10 and W7 on my gaming PCs, while my laptop has Mint only for job purposes.
But you ask first to list how many games runs on linux without being "Windows emulated" then you got rekt by the huge quantity of games that are running on linux natively, even with UE4, Unity and Crytek engine we got Linux games that arent windows ports, because those engines export the games for to Windows, MAC and Linux natively.
Then you pointed out that most games are "indies", and there is where you getting to the troll side, because no matter if you arent bound to indie, those are games. So sorry if not everybody is looking behind Electronic Arts/ Ubisoft or Activision sh ! t. A fact you cant denied is that there are people playing on linux, is most cases out of the box.
The most funny thing about this is that all this "fight" about Steam or Linux being suitable for games or not, comes from a stupid article in arstechnica from a guy who didnt even bother to try another cable or another monitor, using a TV which is not standard because it is two monitors attached to each other, something you will rarely see ever on a TV or monitor.