RSS is still free and still just works.

Except it doesn't "just work" because most platforms have abandoned it.

The vast majority of computation today runs on Linux.

Arguably not where it matters.

the Windows kernel is counting it's final days

it's a pure cost center and no longer offers anything that Linux doesn't.

You're delusional. Show me evidence that "the Windows kernel" is going away. Linux is still a giant pain in the ass to use unless you have lots of experience with command line.

Game developers noticed, this year.

Some of them? Sure. Big ones? Can't even be bothered to tick a box in the Steam client to make them available. Actively adding features that break Linux compatibility and openly acknowledging that, at best, they don't care.

until the switching cost reaches the current low cost of switching web browsers.

My dude have you not seen marketshare for Chrome and Safari?