Sorry, but your questions are difficult to understand. Could you please clarify what you are researching? The fediverse isn’t some metaphysical thing.
What is your curiosity?
I’ve been using a pihole exclusively for years on my Ubiquiti network at home. Combined with Wireguard, it’s a stable, easy ad-blocking solution. I’ve never even considered moving from it, seeing how well pihole Just Works.
Big city mandatory valet comes to my mind.