Why so? I get that you don't like it, but why do you call it stupid?
I have a BS, MS in CS.
W10 was NOT designed for embedded use.
Linux can be recompiled into a distribution targeting either embedded or desktop or server. In addition, the code for linux has long been processor independent.
Windows fairly recently (a handful of years ago) added ARM support. the initial ports were pretty bad.
We won’t even get into the stuff Windows does in the “background” that you don’t want it to do. Ever watch your hard drive light or monitor your network while your windows computer is supposedly doing nothing? You will find it’s doing “stuff”. In Windows 10, that includes even more spying.
Enjoy yourself swimming in the cesspool of Windows. Also, all the windows jobs are going away, as windows moves to the cloud. It’s a useless skill to learn. If you learn a real OS, you have a profession instead of a skill