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.
Content Warning: mood killer, anti-LGBTQ violence
So, I'm queer and originally from Orlando, and I used to listen to WJRR, the local rock station, in the I heart Radio app (don't use it, fuck clear channel). One morning in June 2016, I shuffled outside for my first cigarette and I decided to check my phone. There's a push notification, from the I heart Radio app, about a mass shooting at a gay nightclub in Orlando. And that's how I found out that there was a mass shooting at Pulse. That is probably the most jarring and horrifying push notification I'll ever receive in my life.