I don’t think Apple understands how badly they’re messing up in regards to visual design in their latest crop of operating systems.
There’s a degree of nostalgia, sure, but nobody on the planet can argue that Apple’s current design team seems to have completely lost the plot where it regards both respecting the history of their operating systems and… well, just doing something that doesn’t look like it was phoned in.
I just don’t feel like Apple actually cares about the quality of their software experience any more, and am happier and happier that I’ve been running GNOME alongside as my possible future desktop. And let me tell you, a world where Linux is at least as good as polished as macOS is not science fiction anymore.