These aren't the same situations. Apple makes both the hardware and the software (the OS), so it's all their product. On the other hand, both Google and Microsoft are OS providers who tried to force their software regardless of which hardware the consumer bought. If software providers wanted to have the same control as Apple, they would have to make their own hardware. But that is hard, so they don't do it (anymore).
And if Epic were truly against royalty fees, they wouldn't charge them on their own store. Why do you think they do that?
And microsoft made windows..... and was still forced to allow other internet explorors to compete.
(there was other OS's around, and micrsoft going "theres other places you can go, if you dont like it" didnt work out for them)
Just like apple made the OS, but if other storefronts want to compete, they could be forced to allow it.
Necro-bump this 2020: http://gamrconnect.vgchartz.com/thread.php?id=229249
Bumb in 2021: http://gamrconnect.vgchartz.com/post.php?id=9047071