In the past when I still used #Windows I was always afraid of updates since it took soo much time and often kinda broke or moved things but with #macOS it's always happy times since it always improves stuff for the better
If not major UI changes there are security updates that make me even more happy 
Linux is another story ofc but thats updates on a daily basis! 
People can say what they want but stuff from Apple is in general secure in two ways:
1. The OS is closed source yes, but with a good reason in this case and a choice ofc!
2. A first time user cannot delete important system files or even easily access stuff that makes them confused. This goes for macOS, iOS and iPadOS! Basically a kid can find it's way around it
Plus I just LOVE how 'apps' work but just dragging it to the apps folder, most stuff doesn't need an 'installation' 😉
@stux It's all the stuff that's used, and Darwin itself (OSX's kernel). OSX is a full UNIX system; it just has proprietary UI and apps.
stux⚡️
Matt Wilcox