On the main page of your instance, at the top, you’ll see a link that says ‘communities’. Click that.

Of course, this will only get you the communities on that particular instance. If you want a list of all communities on Lemmy go to https://browse.feddit.de or https://lemmyverse.net

Ask your non open-ended questions on [email protected] instead! :)

I’m not sure I understand. But the search option in the top right is useful for almost everything. If you’re looking for communities you can use browse.feddit.de and paste them into the search to sub to them. You can reply if you have any issues