Why YSK: So it’s easier to find communities here. For example I was able to find monster hunter community. Even if you have a different server you can still join. If you check the right side of the screen and follow the instructions so that you can subscribe to that community.
I think this will only show communities from other instances if they have already been federated from there. So if no one on your instance has subscribed to a specific community, you won’t find it in this search.