I hate the state of nostr DMs at the moment, or more specifically how all nostr apps implement them. Sooner or later I'm going to need to write my own NIP-07 that rejects ALL 1000s of decrypt requests...
it is because you have to trust the relay in a store and forward protocol. rendezvous tunneling like nip 46 could be instant but only work if both/all are online. mls does this for store and forward but mls with no store could be made too. and clients could share history, with a group of 10 or more users it would be all of the store and forward without the trust relay