One of the most irritating aspects of the Android user experience is the bing-bing-bing of notifications.
When you buy a new phone, it downloads all the apps you had in the past. Those apps have default configurations that cause notifications to be put in your notification inbox and to make noises.
And so you play this game of whack-a-mole killing the sound notifications only to have it go bing! at the most inopportune time because some app you forgot about decided that it was the time to go bing! as part of some vain re-activation play.
I wish, wish there was a global way to control these frigging notifications globally…