I don't think Facebook has enough apps to make an app store happen. Amazon and Samsung couldn't get their app stores onto other people's phones, and not even Microsoft could make Windows Phone happen.

I can see Epic starting a mobile game store. And, honestly, I don't see a problem with that. Apple is using Apple Arcade as one of their many "stay with us and you get all of this stuff" services, so why not? Perhaps Microsoft will join the fight and take Game Pass to mobile phones. May the best app store win.

Apple clearly has the upper hand no matter how this plays out. They'll actually have to compete, which means they may need to fix the review situation and loosen some of their policies to allow for things users want rather than make their users comply with what they want. They can stick to their "no video game streaming, no emulators, no links to your website" policy if they want to, but that'll only work as long as their users agree with them.