> The YouTube thing is Google's choice, not Apple's, as those are "premium" features. Install Vinegar (https://apps.apple.com/us/app/vinegar-tube-cleaner/id1591303...) to get a standard HTML5 player in YouTube, which will let you make it full screen, PiP it, background it, whatever.
But it IS Apple's choice. The problem is they have a mixed up conflict of interest, and it's even worse when Apple themselves is trying to sell you their own services.
IMHO the company making the hardware, the company making the software, and the company selling the cloud services shouldn't be allowed to all be the same company. There's too much conflict of interest.
I don't see how it's Apple's choice?
Google sells PiP, background playing etc. as part of YouTube Premium (not Apple!). Google serves browser clients a player that can't do those things, because they want you to pay for them. Vinegar is a browser extension that replaces Google's player with Apple's plain HTML5 player. Apple's plain HTML5 player does all that stuff for free.