How can I receive all the notifications?

I don't know if it's a problem, but I'm only getting notifications from the chat and mail app, but no other types of notifications. Has anyone happened to him?
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I don't know if it's a problem, but I'm only getting notifications from the chat and mail app, but no other types of notifications. Has anyone happened to him?
Comments
Go to settings - battery - battery optimization - and for the apps you want notification, set these to be do not optimize.
Then go to settings - battery - power master - auto start manager and enable the apps you eant notification.
thanks good man , solved my problem!!!