Amazon Appstore (used for Microsoft's Android integration in Windows 11) uses Amazon Device Messgaing (ADM) instead of Google's Firebase Cloud Messgaing (FCM) f

Amazon Appstore (used for Microsoft's Android integration in Windows 11) uses Amazon Device Messgaing (ADM) instead of Google's Firebase Cloud Messgaing (FCM) for push notifications. A FCM receiver is built into Google Play Services to enable push notifications for Play Protect certified Android devices, but ADM is a viable alternative for Amazon and Microsoft as long as developers tailor and submit apps to the Amazon Appstore. https://developer.amazon.com/docs/adm/overview.html https://developer.amazon.com/docs/adm/overview.html Gotify and OpenPush are open source push notification solutions, both in the beginning stages of development: - Gotify: https://gotify.net/ https://gotify.net/ - OpenPush: https://bubu1.eu/openpush/ https://bubu1.eu/openpush/