I’m hoping that, someday, we have support for what I described in another post:
It would be very beneficial to have clients that support aggregating equivalent communities from multiple instances. When viewing a post from the aggregated community there could be a section at the top saying “Viewing comments from:” and then a dropdown to choose between “all instances”, “lemmy.world”, “lemmy.ml”, etc. When viewing all comments, they would be in one combined feed, without the user needing to care about which underlying post holds the specific thread they’re looking at.
Similarly, when users post something to an aggregate community, they could select whether it’s posted to all the included communities, only one, or some specific subset.
This article is from 2017. I’m sure it would have been useful at the time, but it’s not covering present-day JavaScript.