My immediate thought was that they'll introduce encryption that happens on the client, and decryption that happens on the other client, but will have a way to k

My immediate thought was that they'll introduce encryption that happens on the client, and decryption that happens on the other client, but will have a way to know what the key is on the server, too. Honestly any near-ubiquitous communication medium is going to have enormous pressure to be insecure by design, if not from the Chinese government then from the US.