I see now when making this topic that it has been brought up before:
It would be very helpful to have a sensor showing the sent or remaining notifications for each mobile app integration. Sometimes the cameras sees a false positive or something else happens and the rate limit can happen early in the day. If I knew how many were sent or was left I could include a throttle in the automations to limit notifications sent to only more important ones
Unless I see the notification I cannot monitor the rate. If I am admin for an HA system that I am not a user for I cannot know if I a spamming notifications to a user without this data.