Hi. Hashtags aren’t really a thing in Lemmy. Search for the communities you have an interest in and subscribe. Those communities will then show up in your Home feed.
Home is for communities you subscribe to.
Local is the communities hosted on the instance you have an account on (lemm.ee)
All is all communities for all instances with a few caveats. Posts to communities on instances blocked by your instance will not show up. Also, I think that if no one from your instance is not subscribed to a community on another instance it will not show up in All either. I’ll let someone correct me if I’m wrong on that.
Have fun.
Somehow clocks returned.