I think they’re actually encrypted with Apple though, as in they can’t see them at all.
Discussion
nostr:npub1pnpez7cn4h04pxg07dmmklzyz7u7fm0w2ddrw220qh785rq3m42ql452zw nostr:npub1tj5fw9d0cpzxe5mtrsnp4mtu2dq50hk05e93y33r0ea6kjd05swq9hl33p nostr:npub1zxxp06lma7hh358kc36fytf6psy3ra0v6r53epxrwssgnvm5plhs06u452 there's no way you can verify that yourself because it's closed source. Example: WhatsApp messages are moderated despite "being encrypted" (hint: that means they aren't)