One thing I haven’t seen mentioned yet is that Mbin supports custom magazine/community CSS like Old Reddit did. Don’t think it’s federated currently though, so it’s local only. There’s also the ability to follow users and boost (retweet) content, which Lemmy lacks.
Judging by recent posts by Piefed’s creator, they seem to be planning to add end-to-end encryption and ephemeral content.
Lol I’d be surprised if my country (Switzerland) follows through. We keep voting down any climate proposals.