nostr:nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpq9dxzvzpewcce5zkqtupqqypju4y2p5je6k7zq6wzme7gnkv0ja4smmrhum You can see Revolut shows an error about custom firmware not been supported where they claim they are "serious about keeping your data secure". This is them using an SDK to specifically detect GrapheneOS and then banning it. It is not related to the Play Integrity API at the moment. It's a client side check within the app. Play Integrity API is something their service can enforce based on the app triggering it and their service obtaining the result from Google's service.