Wow,that's a huge reach on the apple side of things.
You compare alternative app stores on Android devices to apple alt stores requiring rooting an Apple device. Very different and not an equal comparison what so ever.
Then referring to PWAs existence as an excuse for apple not having a monopoly to their device ignoring the fact apple has resisted PWAs in general and has taken a long time to even allow them to do something as basic as permit notifications.
Your attempt at equating the two is very obviously flawed.