I thought a clear signal of something lacking E2E encryption is if a web browser can display messages without a client-only password. That is, if the company ca

I thought a clear signal of something lacking E2E encryption is if a web browser can display messages without a client-only password. That is, if the company can render your messages in plaintext server-side, they can read them server-side and do anything with the plaintext. Now I realize the client-side password could be saved and retrieved in the browser for ease of use, but I don't think that's going on.