> I put together something that used FCM and it can take 15 or 20 MINUTES to get even a "high priority" message from FCM.
(from what I remember of some android documentations) Your definition of "high priority" is different from Google's one, which is also different from the end-user's definition. Google probably favors the end-user's preferences more than the developer's preferences. If the user wants all notifications asap from a particular app, the system will do a best effort to deliver, given all the other apps notifications and the current battery level.
(from what I remember of some android documentations) Your definition of "high priority" is different from Google's one, which is also different from the end-user's definition. Google probably favors the end-user's preferences more than the developer's preferences. If the user wants all notifications asap from a particular app, the system will do a best effort to deliver, given all the other apps notifications and the current battery level.