Basically, you saw different posts on each instance’s local feed because they dont always federate with the exact same servers, one may be blocked on one instance or not yet discovered

it does matter what instance you’re on when your instance starts getting defederated by others - so far i know a lot of servers defederated lemmygrad and explodingheads for political extremism, and beehaw blocked shitjustworks and lemmy.world because of bots