Update: I just got this email a few minutes ago:
I submitted the claim on Oct 09, 2022, which was the day of the delayed flight. The total delay was about 9h 30 minutes, just over the time for the maximum compensation. Our flight was canceled, and the flight on which we were rebooked was delayed.
While we're over the 30 days promised for response, today being the 44th day actually isn't too bad, considering how the cases have been handled for some. I never did anything to follow up on it.
This claim is actually my wife's, so hopefully mine will come through soon!