If able to go without Windows thats great and all, but for gamers where Microsoft owns the rights to DirectX and no Open Source has made a DirectX module to tap into the power of DirectX, many games just dont perform as well with OpenGL.
On Linux you need to install the proprietary Graphics Driver, otherwise OpenGL will usually run through MESA, a software renderer, which will have worse performance by design.
Currently WINE implements DirectX 9.0c, and most games using DirectX can be made to run on Linux.
Otherwise, Linux has OpenGL and Vulkan- again, with the proper drivers. You can't just clean install Ubuntu or Mint or whatever and then try running games.
EDIT: there is apparently work on DX10 and DX11 as well,
here.
I was hoping over the years that Microsoft was going to sort of copy Apple and use Linux as the core of its OS.
Apple never used Linux as the core of their OS. OS X is a certified UNIX operating System (except the latest release, for some reason) and the kernel was built based off of nextSTEP which itself used parts of BSD UNIX and Mach. Everything on top of it, however, was proprietary- You can't install the OS X Desktop Environment elsewhere, for example.
Recently the funniest thing I saw about this Edge thing was an MS Engineer actually "calling out" Mozilla:
"Thought: It’s time for @mozilla to get down from their philosophical ivory tower. The web is dominated by Chromium, if they really *cared* about the web they would be contributing instead of building a parallel universe that’s used by less than 5%?"
Talk about a lack of perspective. Mozilla- the only browser developer that has a clear commitment to an open web- is apparently the enemy of the open web for basically not *allowing* Chromium and Google to completely dominate and dictate the web?