These are all trillion dollar companies, your allegiance is wasted.
>>that something Google has created works better
Does it? The system for categorizing notification does exist on android, but it's not enforced in any way by Google on the Play Store so most devs ignore it - do you take an issue with anything I said?
Of course changing any setting on Teams has catastrophic unpredictable effects on it... But at least they tried.
I tend to use "Focus Mode" turned on always in Android. Most apps are short lived (5 min after being opened manually), this reduces a lot of the spam. I automate extending this time using the same FilterBox to auto click the notification that the app will close in a minute, but only if the screen is turned on. So the app gets automatically disabled when I stop using the phone.