I killed them completely because they choke the drawer too. I don't know if I've set some option somewhere but they seem to linger forever, swiping them away do

I killed them completely because they choke the drawer too. I don't know if I've set some option somewhere but they seem to linger forever, swiping them away doesn't stop them reappearing later. I'd rather have none than all my unreads keep notifying (I'm on iOS 14)