it's possible to receive push several seconds before the msg appears in the app

surely this should be impossible, given the app generates the push notif? to reproduce, fg the app as soon as you see a push notif (not by tapping on the notif). stare at the timeline in confusion for a few seconds until the msg appears

Reproduce the timing described: foreground the app immediately after receiving a push notification without tapping it, then observe the timeline until the message appears. Trace the push-notification and timeline update entry points to determine where the delay occurs. Done means the message is visible in the app when its push notification is received.

Written by the indexing model from the issue text.