So I always here about on how Google Android and IOS those companies can see all your notifications. This is because to show a notification it calls an API.
Is there any technical reason that it has to send your notification data to Google and Apple or is it just to get more data on you?
There is a FOSS alternative. ntfy.
I’ve been running it for a couple of years, if not longer. Works extremely well. The downside, of course, is getting the apps to support it.
The ones I care about already do.
That’s fine for you and me, but not for the masses.