Push Notifications Not Working

IPhone 11 Pro

IOS 16.3

I'm not being notified when receiving messages on, for example, Snapchat, Instagram, Facebook, and Messenger.

I do, however, receive notifications for some apps such as Uber Eats and CarSales. I also receive text message notifications.

I've done everything to try to fix this issue.

1. restarted iphone multiple times.
2. Updated apps and firmware.
3. turned notifications on and off multiple times
4. turned focus mode on and off and fiddled with focus settings
5. Reset iphone.

Can anyone please suggest something else? Not sure what else I can do.