I highly recommend installing Buzzkill for those on Android.
In addition to built-in per-channel settings, Buzzkill allows you to create rules to auto-dismiss or do certain actions depending on the title or description of the notification, using basic matching or regex.
It also gives you a nicer view of notification history, with more days and scrubbing across time if you ever want to revisit past notifications.
https://play.google.com/store/apps/details?id=com.samruston....