tbener As of the logs it is all ok. I send the system the HIGH priority and the dialog.
Seems Samsung has again changed the default behaviour.
In the official docs there is a "note":
So this is why I firstly don't wanted to add this because I am out of control when the popup is shown and when not.
Anyway did you still see a "heads up" notification?
The notification should popup down and stays on the screen.
Should look like this, but with "Snooze" and "Dismiss" buttons (and it should stay on the screen and not go away until you swipe up: