I don't see how you can use composition without eventually calling methods of the contained objects. Every method of the outer object either uses an inner object or it doesn't. Yes, using the inner object doesn't always means just delegating to a single call. You maybe would implement the outer by calling an inner objects method multiple times or different methods, but nothing stops you of doing the same thing with a super class. When you don't call to an inner object, it's the same as you adding another method to the subclass, without it being present in the parent class.

I think composition over inheritance is only about being explicit. That's it.