Today's update fixes the notifications and the alerts upon receiving a notification. Thanks for fixing that, Garmin team!
'Sticky' notifications are gone though. I happened to use those a lot. Some of that functionality (sending notes on the watch) can be taken over by the calendar app, but that needs to sync before a calendar item is sent to the watch, which requires internet, and that is not always available. Perhaps sticky notifications can be re-enabled? That would be great!