The search in Jerboa is…limited. It searches on community name(not display name) and it will only show about a dozen of the largest communities as results and nothing more. You essentially need to already know what you’re looking for to find a great deal of value from it.
You really have to search for communities externally if you’re looking for something that isn’t a niche interest. There’s a small handful of directory sites that help with this, but I can’t for the life of me remember them at the moment if someone can help me out 😅
Edit: Mentaledge beat me too it. Lemmyverse.net is the largest of them.
Just chiming in to say I’ve been having the same issue. Pages beyond the first (so maybe about 10 posts or so at a time) will not load and get stuck with a red “pages failed loading” error at the bottom of the screen in Jerboa. This behavior started over the weekend. All other navigation seems fine, I can go to a community and sort by any of filters but only the first page of posts will be visible. I’ve got about a half dozen different accounts on different instances and the issue only happens when logged into this instance at this time.
Edit: Unlike OP I never stopped having the issue. It’s still present post maintenance and upgrade.