It would be hilarious if the end result was iOS users no longer being as valuable to app developers, if the ecosystem just starts to feel sketchy and people stop spending as freely on it. I don’t think it’s likely, but it feels plausible enough to lol at the idea.
This doesn’t stop Apple from controlling which apps can be installed. It stops them from using a link to external payment as a criterion.
I do think this will have some effect that you describe (e.g. perhaps Epic suffers a breach in their payment system) on the end user side but it’s not as bad as the android store situation. if anything it will make iOS users more attractive to devs as they can now keep a larger percentage of IAP sales.
But when IAP costs less than 30% I expect all paid apps to go the IAP route.
