Yeah but that broke GRUB and had a pretty specific error message associated with it. I don’t think problems with grub look like what OP is describing (although I don’t know enough to say for sure).
Anecdotally, I’m running a Fedora Atomic-based OS alongside Windows and that Windows update didn’t cause any problems for me.
I’m going to disagree with you on the “is Mac better than Windows” front - I think there’s good arguments either way though. At least with a Mac, the end user is still, mostly, who they are designing for. On Windows the end user is becoming the product.