I hope Epic loses this. I do not want the App Store opened up in any way. One of the reasons I use iOS is so that I have very few worries about a device that I use every day.
To me, and I suspect to almost everyone else, iPhones are not computers. They are devices. Laptops are computers because they are for computing things. This is why I have moved away from MacOS as they have progressively made computing harder, but gravitated even further towards iOS.
If you want a totally open smartphone platform, great. That sounds wonderful for you. But don’t use the law to take away the only secure smartphone platform I have available to me - go find your own open platform and play Fortnite to your heart’s content.