The difference here is that Apple doesn't sell or distribute their MacOS to other PC OEMs and dictate to them with how and what software packages they ought to

The difference here is that Apple doesn't sell or distribute their MacOS to other PC OEMs and dictate to them with how and what software packages they ought to ship their PCs. In another word, Apple is free to do whatever it feels like as long as they do it on their own hardware or at Apple retail stores.