I think Apple is making a really fatal flaw. Tbh Microsoft is doing it too.

Design good interfaces, with sane defaults but do not handcuff power users!!!

I often hear people say no one should care because there aren't many power users. They're a small portion, but that's absurd framing. They matter a lot because they're the ones that push your design language, develop new ideas, influence the general community, build new programs, find your bugs, and all of that. Apple and Microsoft are closing the ecosystems to get more control not only to exploit the users more (scrape their data) but to reduce bugs and things. But more and more people are trying these random programs because they can't figure out how to do things the right way. It's exactly why people are getting more frustrated with computers. The general public still doesn't care about data harvesting but they do care that the restrictions are handcuffing them now.

Funny enough this is also why Linux is becoming more popular. You've always had complete control but in the last 5 years the barrier to entry has plummeted. It's still not right for the average joe but it's on its way and a few more specialty distros are already there (e.g. steamos). The irony is Apple had the right idea before, even if not as modifiable as Linux, it used to be easier. But now it's more like a power trip. Consolidating control because they don't know what else to do