Don't misskey(or the forks) already have the similiar feature like the gallery function?
Discussion
nostr:npub1x3azxuysp5vmfer4vgs4jn5tmfcx4ew8sh0qnev7gczljxsr7jwqa3g4el Hmm, I don't think that this can be called a "similar feature" :blobcatgrimacing:
Hmmm if you want something that looked similar in IG, then you could either try to use Pixelfed.