Part of it too is that Apple feels pressure to do something innovative. They made some big bets in the 2000s that paid off very well but a company that has a hit like the iPhone becomes profoundly conservative. The trouble is that there aren't many market opportunities bigger than smartphones, there's a possible iCar and an iHouse and that's about it.
Apple's worst fear might be being successful as a niche product: what if every seat of Dassault 3Dexperience ends up with an Apple Vision Pro? Apple might be left with the maintenance burden forever but no real prospects for a mainstream product.