Well i actually used the wrong term, sorry.

“Comm” actually is lemmys version of subreddit, short for community. We are chatting in the vegan recipes sub/comm.

“Instance” is your home server, as unlike reddit there are lots of servers, each privately owned with their own rules, from which you access content on the “fediverse” (federated universe).

“Federation” is the term to mean that while you and i aren’t on the same server, (im on sh.itjust.works) our two instances talk to each other and allow us to have this conversation.

Some “instances/servers” choose to federate with all other servers, some do not, so my earlier comment was saying 'i don’t know what other servers/instances your instance (feddit.org) talks to/federates with.

When you’re exploring feddit.org, there’s an option to see “local” (feddit.org posts only) or subscribed (im bettin ya already know what that does) or All.

All is the one that will show you posts from every instance yours federates with. If you select “All” i think you’ll be able to see more posts.

Other things you may wish to try is changing your view from top hour (or whatever its on) to a different one (i default to “top 6 hours” and “active” usually) and see if posts pop up.

If youre coming from reddit it may be a shock how much less content there is comparatively. I know there are more active vegan subs on other instances but im not the best resource for that, hopefully someone else can hop in with a list of the most active for ya <3