However, Apple is also one of the largest companies of USA and a quite successful one. At that size they must have considerably good lobbying efforts, political class might also have connections to Apple through shares etc. They might go and say that enabling third party vendors will cause thousands to lose their jobs at Apple. They basically got a huge amount of political influence and I’m sure they will use it for this case.
How much political influence Epic games have? Zero? Perhaps not zero but definitely not at the level of Apple. Hence, this case might not be a straightforward win for Epic.
It is good though, perhaps some of the fortnite players will understand why antitrust laws are needed and perhaps influence the justice system once they grow up.