Comment by athenot

Whether or not they eventually fuse, I don't know—I doubt it. But the approach they've taken over the past 15 years to gradually increase the similarities in user experience, while not trying to force a square peg in a round hole, have been the best path in terms of usability.

I think Microsoft was a little too eager to fuse their tablet and desktop interface. It has produced some interesting innovations in the process but it's been nowhere near as polished as ipadOS/macOS.