Liftoff!

A couple things I'm struggling to do:

• Search posts within a community (hence why I'm posting this, perhaps it's been answered before!)
• While viewing a post on the home feed, go to the community it was posted in. I like viewing Everything so I can discover new communities, but if I find one I want to subscribe to, there doesn't appear to be any way to view the community. I'd expect it to be in the three-dot menu (it isn't), but tapping the name of the community in the header doesn't seem to work either; it only goes to the user. Is there any way to do this?