> My "favourite" (/s) feature is windows that _stick_ on top of others. Like, some updater for some app that just stays on top of other windows even without having the focus.

Then in Apple's infinite wisdom, doesn't let you manually set a window to be always on top - one of my most missed features from Gnome, KDE, and even Windows has it with PowerToys.

I love my macbook's hardware, but macOS has to be one of the most frustrating operating systems I've ever used.

Agree to both points. The UI part of macOS is trash, and there are a few times I'd like to have kept a window on top but couldn't despite the random updaters and reminders doing it without asking.