Probably because it’s where a lot of us ended up when we got old and stopped wanting to fiddle with settings. I’m sure Linux will one day catch up to where Mac products are and simply work out of the box without hassle, and maybe they are already there.
But I switched from Linux to osX after 10-15 years because I got tired of having to ever really deal with the OS.
How do you install macOS on a powerful desktop like the ones I've built?
How do you make "sed" be GNU sed on macOS without breaking all sorts of scripts?
How do you play the latest games like Deathloop on macOS?
How do you turn off workspace switching animations on macOS? (Note I said "turn off," so don't suggest Reduce Motion).
How do you set different scrolling orientations for mice and trackpads without installing yet another app with its own icon, updater, etc?
As another commenter pointed out, using macOS is like living in a hotel. Some people live in hotels already and some others would certainly do so if they could afford it, but it's not the kind of life I want to live.
But I switched from Linux to osX after 10-15 years because I got tired of having to ever really deal with the OS.