Having to deal with corporate security I’d rather risk breaking things through an update than virtually any other issue that can come from patching and staying up to date.
Windows 11 does have an impact on Virtual Reality and MSFS. But by now, it’s on the VR runtime publishers to get the proper support.
FWIW I was having relentless CTD with Windows 10 but since I updated to Windows 11 they’ve all but vanished. FS is now much more stable.
I also kept/keep both completely up-to-date, although I’ve manually disabled auto-updates which protects you from the worst Microsoft blunders. You tend to hear about major issues within 24hrs of a Windows update if there are going to be any.