Device: Samsung a03 Core
Some apps has notifications toggled off and switcher is disabled so I can't even manually toggle it on.
I'm developing an app (Mapmagic on a screenshot) which also uses notifications and foreground services. When I run debug version signed with debug certificate it's possible to toggle notifications on.
When I try to build release version OS disable the notification permission toggle and it's not possible to turn notifications ON. Same happens when I install app via google play with app signin enabled (meaning google re-sign my app bundle).
I've already tried to reinstalled everything, do factory reset of the entire device etc. Even some google apps has the same restrictions so!
Did someone face the same issues with their apps?
Finally I've managed to find that the issue appears in case of updated target/compile SDK verison and POST_NOTIFICATION permission.
In case you use up-to-date target/compile SDK (starting from android13) you need to declare
<uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>