I don’t know if I make sense, For example, I am on lemm.ee and I want to find or browse all communities in Lemmy.world
https://lemmyverse.net/ has been invaluable to me as someone running a very low member-count (for now?) instance. This is a directory of communities on all known instances.
Go to lemmy.world, click the three vertical lines.and hit “community” to get you here. Should work for most instances.
You aren’t logged out per se, you don’t have an account on that instance so will show as not being logged in there (which you aren’t). What I tend to do is save any community links to a notepad app and then go back to my own instance and paste the link into the search box or just search using the communities name.
You can use your World account to post in communities on a different instance, but if you want to join that instance you need to make a separate account.
It’s best you have one account on World, go to the top where it says communities, search under all, and subscribe to what appeals to you. You can still interact with the other instance with no issue.
Instances are completely separate servers. The downside is if World goes down, then you can’t do much, but you can login to a Blahaj account and still use Lemmy like normal, except access World posts. So the idea is to create your own instance and customize your feed, if a major instance is down it doesn’t impact your ability to browse instances that are still up.
Is it expected to change in future? For me it’s a huge limitation for me, I would like to have a flawless integration and ease of movement between the instances. So far Lemmy is good but I will come back only If there’s an improvement in this regard which I believe there would be if it’s possible since the mass migration from reddit.
But that will only show communities on Lemmy.world, none on other instances
Use sub.rehab, lemmyverse.net or browse.feddit.de
Its a little weird, but difficulty with finding communities across instances is a known issue with the fediverse and I expect it’ll improve in future!
Perhaps you’ll find this helpful: https://lemmyfind.quex.cc/
