Since long before Microsoft and Apple and even Linux discovered security patches, I have worked with NetBSD UNIX (we're talking since the early-mid-90's here). NetBSD UNIX is arguably the MOST SECURE operating system in common workstation and server use. And it runs on everything, but that's beside the point.
You know what? NetBSD gets patched often, just like Windows, just like MacOS, just like Linux, etc. And NetBSD.org produces a near-constant stream of PkgSrc package updates with bug fixes, security fixes, features, etc. You know what else, they LIST EVERY PATCHED AND UNPATCHED VULNERABILITY so that you knew exactly what was going on. Here's the package list of over 17,400 packages. And for every one, you knew exactly what the fixes -- and the problems -- are. You can look it up.
So please, guys, don't argue about the Deep Hidden Meaning of security updates. Everything needs patches. Constantly. Lighten up.
These days Windows is in pretty great shape, security-wise, and its continued dominance on the desktop speaks to its high degree of utility. IMO, its downsides stem from two other long-standing problems: a) 25 years of using a kernel that got screwed over when it was just a baby and became nearly impossible to maintain, and b) a Marketing department that can't get its head out of its ass to save itself. Those are both fixable, although they would be wrenching changes. But I digress...
Perhaps I wouldn’t have such a bad opinion of Microsoft updates if they didn’t break two things for every one thing they fixed.