I’m not sure that they’re an unknown concept, because macOS has lots of little things tucked away all over the place for power users. It’s one of the things I miss most when using other desktops, particularly those that go maybe a little too far on the minimalism thing (like GNOME).
It’s just that they expect these users to have fairly specific usage patterns and design around those. The further one’s personal patterns deviate from that expectation, the higher the level of friction encountered.
