I'm one of the most staunch Apple supporters but even I must admit that since WWDC 2019, I have spent more time fighting Apple's bugs than actually using any of the new features...or the old features that
used to work flawlessly (like iTunes/Music.)
Not just on the user side, but the developer end as well.
Perfectly valid code which used to work up till Xcode 11.1 throws errors inside the Swift runtime or toolchain on Xcode 11.2 (and 11.2.1). Even the Swift engineers on the official forums don't seem to know what you can or can't do with the new language features.
And after seeing bugs I reported eons ago still not fixed, it feels futile to even bother reporting them anymore.
It's still not quite bad enough to make me want to flee back to Windows or switch to Android, but it does make me depressed, like there's nothing left in the world that "just works", except maybe my Nintendo Switch.