Nah I’m not saying to force my one instance to cache all communities

I’m saying a feature on the app that lets me search all communities in a site that already indexes them, like lemmyverse

And then once I’ve found thr community ive searched for, a feature to load just that one community from my instance to add it to my subs or peruse, not every community.

Yup but a feature built into the app to search lemmyverse and be able to pull in missing communities to your instance would make this the best lemmy app by patching a huge hole in the fediverse