Jobs has long been vocal about protecting the user experience. Not 100% sure if it's true, but I heard Jobs was originally opposed to custom apps running on the iPhone (the App Store), because he 'didn't want to turn iPhone in Windows'.
Jobs wasn't always correct about things. There are a large number of examples where he wasn't.
Jobs was right. Apps are so shitty now I don't even bother. Everything has a subscription now and there's so much noise its hard to actually find signal on the appstore.