Some of it is also the nature of the fediverse. For example, you'll sometimes see people complaining about having to see the same story multiple times.
The exact same article will be posted on [email protected], [email protected], [email protected], etc. etc. Or you won't get to see stories depending on which instance you're using, because server A has chosen not to (no longer) federate with server B, which means you need an account with multiple networks to see the whole fediverse, despite the fediverse supposedly being interconnected.
That's off-putting to many users, but I don't know if there's a way to change that easily, because these kinds of things are arguably part and parcel of the fediverse.