That's the idea! "Allow" the user to install any apps they choose. (I put "allow" in quotes, to emphasize how bizarre it is that a few platform vendors get to decide what all of humanity is "allowed" to do with their computing.)
GP here. I agree in spirit but there’s a technical difference between ”approved to distribute” and ”approved in an App Store”. Specifically, you can distribute software for Windows and Mac outside of their stores, but you still need to have a code cert which means you’re under their mercy. This is the model Google wanted to transition Android to recently: keeping the APK path (no App Store) but gatekeep developers through signature enforcement etc.