I think now that Apple has learned from iOS how profitable a walled garden business model is they are trying to bring that model to the PC world as well. Shipping hardware with their own processors is an important step in that direction because it gives them control over the IP of arguably the most important component of the computer, which in turn makes it easier to control software distribution for their architecture as well.
The transition will be slower of course because people have to get used to seeing computers as closed-source devices with app stores, there are still too many of us who have the mindset that you can just install anything you want on a computer without asking Apple for permission and without paying tax to them.
At this point I really wonder how any serious "hacker" can work on such a device, it's becoming the antithesis of everything that the original Hacker culture stood for.
1: https://arstechnica.com/gaming/2020/11/judge-dismisses-apple...