In a bug in the iOS 17.4 beta, EU users face an extra security step when buying from Apple’s App Store, to give them the same hurdle facing those who buy from the new rival stores.
Fifteen years after the App Store first opened, users in the European Union are going to see an extra step before they can download apps. Just as with any other app, and presumably any forthcoming rival app store, Apple’s App Store will now ask permission before it downloads.
Apparently in the EU, there’s an extra step when downloading an app so that the App Store behaves like a 3rd party marketplace (so it’s not considered anticompetitive). It’s after you authenticate with Face ID.