Because frankly I think the Linux Desktop as it exists is incompatible with a good personal computing platform. I have rambled on at quite some length about this elsewhere on HN. Were Windows to become just another cobbled-together leaky abstraction of a desktop on top of Linux, it would suffer from all of the same problems.
How much have you worked directly with the WinAPIs? Because oh lord.
I imagine it'd be more holistic and maybe not so similar to current desktop distros. No X11 for sure, but not sure if it'd even be wayland.
May not even be Linux - BSD seems more likely of the two, especially considering licenses. Remember that Apple did the same transition with OS X (which has roots in BSD).
> How much have you worked directly with the WinAPIs? Because oh lord.
What does that have to do with anything? Yeah, they're often anachronistic, but that's to be expected of something with over 2 decades of ABI compatibility.
> No X11 for sure, but not sure if it'd even be wayland.
WDDM and DWM have supported features for over a decade that Wayland still doesn't support.