I have ~800 applications installed on my phone and there are fewer than a dozen of them that I would not immediately uninstall were they to send me a push notif

I have ~800 applications installed on my phone and there are fewer than a dozen of them that I would not immediately uninstall were they to send me a push notification. I don't buy that "no app developer" can avoid using FCM, the overwhelming majority of applications have no use for them besides spamming users with desperate pleas to return to a screen that can serve advertisements.