I would (grudgingly) accept this argument for iOS, but for Mac OS it doesn't make any sense.
iCloud? You can use Google Drive or Dropbox or whatever MS calls theirs. Apple Music? Pretty sure it plays at both.
Most major apps are cross platform (Adobe, Microsoft and such), or Electron based.
Syncing with your iPhone? You can do that from Windows and Linux as well. Airpods? Work with Android and Windows too.
And so on.
You didn't read what I said. I said MacOS IS a monopoly in the Apple ecosystem.
Apple users dissatisfied with how MacOS is changing, as the one I was replying to, have nothing else to switch to without uprooting themselves out of the Apple ecosystem altogether, which most don't do but just put up with it.
Now, Apple's incentives are changed. The App Store alone makes multiple times more money in a year than the sum of annual Mac and iPad sales put together. The OSes for these products are decidedly back-burner so Apple can focus on expanding AppleTV's IP library and lobby for Apple Pay. Ternus won't be your savior.
John Ternus says Apple has ‘so much’ opportunity to expand services