“Early access” currently but I don’t pay for X or anything and it’s there for me. This comes after X were criticised and had all sorts of “backdoor” conspiracy theories being pushed after they took their private encrypted DMs offline the other day to add improvements.
Because cryptography is hard, especially when you’re trying to do it in a user-friendly manner, with syncing encrypted conversations between devices and whatnot. Like, it’s kinda the whole reason why the classic reply to “how do I make my own encryption algorithm” is “don’t”.
Also, with proprietary platforms you can’t make sure stuff’s encrypted the way they say it is