how to disable this annoying notification

I just decided to turn on Google play services till I get a rom with microg support (Once my phone reaches EOL ofc) idk if my samsung A55 will get any roms

Depends on what rom u got. Im on grapheneos and can force any app or notification to shut the fuck up.

Oh I got the stock rom
- In that case u might have some trouble. How did u remove play services in the first place u root it? If u got a pixel then just getting graphene os is wayy easy.

I have MicroG and don't get those. I'm not sure it's what you are looking for...

idk if google allows you to disable this notification bcs i cannot get microg as a replacement it says invaild package even when its disabled the apps work fine (idk if it has to do with google play services being installed by default) and i dont want roms rn bcs the phone gets important updates
- How did you degoogle exactly?
  
  I flashed a degoogle OS (Lineage) and immediatly flashed MicroG, before the first boot.
  
  I was under the assumption this was the proper way to do it, but it's been years at this point, maybe I misremember or maybe stuff have changed.

The only thing that could work - delete/disable/abandon the app and install an analog from f-droid. And even then you'll encounter these notifications a few times per day. I gave up and flashed the phone on a third day to a custom rom

Oh

Tasker or Buzzkill can cancel notifs as soon as they appear :)

ty

See from the notification settings if this notification is categorized under some head. And if the category is not catch all, you may disable notification for that category. Otherwise blocking all notification or switching to alternative app would be the last option.

disabling notifications for that firebase app works
Imagine if you could block notifications matching a regex
- It's not exactly a regex, but Buzzkill lets you get pretty granular with your filters.

Can you long press the notifications and mute them? Or take away the notifications permission of the specific app?

Some apps I can bcs they need firebase notifications to work correctly some are system apps they cannot be disabled
- AutoNotification has been, to date, able to block/hide ANY notification reliably, even in the free version. Which reminds me, such a good app needs support so I'll get the full version now.
  
  I block things like "App xy can view an control youe screen" (No shit, nova launcher needs to do that?) and messages by apps that let them run in the background, eg. Element.

I best I could do on my tablet was to put those notifications on "silent". They in my notification bar but the popup is gone.

yeah i did that thanks to another comment but i wanna remove it from the system apps that dont let me disable it