It's on my list as well. I really appreciate the MacOS handles progressive disclosure, something most environments either get wrong or misunderstand (caugh caugh GNOME caugh caugh)

ETA: One thing I forgot to mention is how playful MacOS was (and to an extent still is). They recognised that the easiest way to learn something is by messing with it and seeing what happens. It also caused it to be very approachable through what I like to call 'professional unprofessionalism'. It wasn't afraid to use silly metaphors or graphics to get a point across without crossing the line into seeming out of place in a work environment or feeling infantilising

Needs moar Copland (R.I.P.) https://bitsavers.org/pdf/apple/mac/developer/Copland/D11E4_...