Yeah I think that would fall into the backdoor category. My point was mainly that concerns over E2E encryption usually stop at the level of encryption and trans

Yeah I think that would fall into the backdoor category. My point was mainly that concerns over E2E encryption usually stop at the level of encryption and transmission. If one really doesn't trust that Facebook isn't honest about how messages are encrypted and who has access to decrypt them, they also shouldn't use an app made by the same company that by design must have access to the decrypted text.