This is actually quite strange to me - that lemmy doesn’t use permalinks by default. When viewing from a non-source instance, there’s a link button between the comment count and the save button that takes you to the post on the source instance, but that seems inadequate. I guess the post on the origin instance is its own permalink, but I don’t like that it’s not distinct in some way.
Is there not a search button at the top-right? It has options to search subscribed/local/all and seems to work fine for me. I’m on an instance website, for clarity. Haven’t tried Jerboa yet.