Android 12 phone stopped to get apps notifications. Any idea of what can be the cause?

[verdeluk]

One week ago my Samsung A22 with Android 12 stopped to send notifications from most of my apps (Gmail, Outlook, Slack, LinkedIn, and others). The only app still sending notifications is WhatsApp. The last Android update was 2 months before, and I did not change any options before it stopped working. I have already tried all the obvious reboots and checked notifications options, DND, etc. Also turned off all the battery-saving options. All looked good and there is no apparent reason why it stopped working....

 

[mustang7757]

One more thing if you have any app cleaners, antivirus, ad blockers , vpn then disable those