Thanks for the clarifications. Regarding 3, why does some new content from e.g. kbinMeta@kbin.social gets pushed to an instance like lemmy.world, but not all new content? I mean, if some content gets pushed it seems to be aware of that instance. Or is it random which content gets pushed? Does this mean that the other instance will never get all new content? This seems like quite the issue?
Edit: ok, I think I get it. So if someone from a random instance posts to e.g., technology@beehaw.org, and that instance doesn't know about kbin.social, it won't get pushed to this instances representation of the technology@beehaw.org magazine?