This question is especially for people who have joined in the last week. Have you used other fediverse platforms or is this your first time really using one? What do you think of it so far? Are you aware that you can comment on Lemmy posts with a Mastodon account?
I think you just search the community name, if it is on your instance it will show up as community name otherwise it will show up as
<community name>@<instance name>likegaming@lemmy.ml.But in your instance or not, it will not make a difference for your experience, all you need to do is click subscribe, and it will show up in your feed.
I only see a subscribe button when I am browsing the list of communities, but if I search for a specific community I do not see any way to subscribe