If you can’t see a community, it is likely nobody on your instance is subscribed. On the top right of the page, search for the community (with the instance included), wait a few seconds, then search again. Subscribe to it, and you should be able to post there.
If you can’t see a community, it is likely nobody on your instance is subscribed. On the top right of the page, search for the community (with the instance included), wait a few seconds, then search again. Subscribe to it, and you should be able to post there.
Search with the format !community@instance.tld, example: !196@lemmy.blahaj.zone