I wonder if it’ll do anything about duplicate notifications. As a basic example, the Weather app exists both on iOS (and iPadOS) and macOS, so if it’s enabled, would you get duplicate notifications on macOS?
I really need to unfuck my notifications; I'm getting them from Chrome (Google Calendar), Office (work calendar), and MacOS calendar (where I have a copy of all of them). Should unify that stuff.
Oh, and I get more notifications on my other laptop which has some similar calendars.