I download the apk file from Whatsapp website to install in GrapheneOS, and I’ve noticed that notifications for messages are very delayed from 15 minutes to no notifications at all until I turn on phone screen and then all of the messages come through. Is there other Whatsapp users with similar issues with functionality?
Signal functions good but there have been times of small delays with messages coming through to get a notification.
Google push notifications are available on GrapheneOS - just have to install Google Play Services. Their sandboxed version of google’s junk is nice because you can fully restrict permissions to it unlike stock Android.