

What is “optimized Windows”? Windows is Windows. There’s no gaming-focused version.
Removing / disabling useless services, tweaking registry…
There’s no such thing, to my knowledge.
SteamOS sure looks like one. Gaming focused if you prefer. I’ve seen a couple on Linux, though I don’t remember their name rn.
What is a “base distro”?
Something like Ubuntu or Mint, which would be more comparable to a desktop experience like windows, ready for productivity
Unless I misunderstood something?