Folks that have been here awhile probably already know this, but may have forgotten and new folks may not know it, so a reminder that we build the All feed together:
These previous ways will only show communities that are already known to the instance. Especially if you joined a small or inactive Lemmy instance, there will be few communities to discover.
With that in mind, for intrepid explorers here, I’d highly recommend looking for communities via Lemmyverse and joining them from here to make the All feed more varied than just Lemmy.World’s communities.
I post this as I was browsing through All the other day and noticed it looked like I may as well have remained browsing Local for how few remote communities I was seeing. And that’s not for a lack of interesting communities on other instances either!
Although...
…That’s not to say it might not also be due to a lack of activity in them, but that can be helped by looking for communities first before making them locally, I think!
As far as I’m aware, it only takes one person subscribing & making the instance aware of the community to start its posts showing up in the All feed. What then determines how much it shows up in the All feed is just how active the community is, if I’m not mistaken.