to be fair there isn’t that much about the fedi in general that you can meme about. the closes you can get are in jokes but:
a) lemmy doesnt have them because this place is uncreative and only serves as a dumping ground from memes from other places when they aren’t bickering about politics
b) in jokes of different parts of fedi do not translate well just because they share a protocol, given the extremely little overlap on people here
c) they’re not really “fediverse memes” just because they happened in the fediverse, are they