Tbf all of those are holdouts from old video game licenses. (That I also don’t agree with)
Apple set the standard for the app store cut and gets that cut on a lot more than video games as well as having a much more needed use case (phones are closer to a need than a console) that you can’t get around.
I consider iPhones and iPads to be personal computers and of all personal computers they are the only ones that don’t allow you to get applications from 3rd parties.