Ah, forgive me. Thought you were on Piefed. 😣

ahem From your Lemmy instance, go to feddit.org/search, put the post's link in the search bar, hit enter and wait a little. That way, the post and the skeleton of the community get imported, and following the community lets new posts get imported.

Alternatively, if you want to find just the community, not any specific posts, community mentions help too, e.g. here would be !piefed_help@piefed.social ([!piefed_help@piefed.social](/c/piefed_help@piefed.social)), which you click to get redirected to the given community. Mentions you can find "in the wild", through discovery communities, sending DMs of the mentions to others or to alt accounts, or sending the mentions to communities specifically for testing.