This is how you get people whining about there being 8 different "Politics" groups, and insisting they should be allowed to erase the identity of the hosting website.
The patchwork nature of the fediverse is baked into the technology. If people don't at least have a basic model for how it behaves, then they're just going to get pissed off at it and leave.
Ypu don't need to know how an internal combustion engine works to drive, but you have to understand how driving works, both from the perspective of operating a car, and from that of the conventions of the road.
"Just find a pretty car and hop behind the wheel" is bad advice for everyone.
I can't wait for the future where we're paying subscription fees for a thousand separate essential services and the libertarians start suggestinf thet there should just be a service that provides a single source for paying and managing all of tjose subscriptions.