Volkswagen blocked their app on GrapheneOS, LineageOS, and other custom ROMs. They claim it's for "security" because the app now relies on Google's Play Integrity API and certified Android standards. Meanwhile, the same app still works fine on Android 10 devices that stopped getting security updates years ago. https://cybernews.com/privacy/volkswagen-grapheneos-app-issues/ Android 10 received its last official security update from Google on March 6, 2023.