And yet every time I go to a presentation or a lecture people ask to borrow my MacBook for it because their Windows or Linux laptops can never even connect to their projectors or Bluetooth speakers on the first try. Often they cannot at all connect.
Yet the MacBook connects to everything on the first go with zero fuss.
So yeah, I am calling part of Apple's functions and devices interoperable. Why aren't you? These are observable facts in the wild and it happens every day somewhere around you as well.