DreamlandLividity

Time for Mullvad VPN?

Zero-access encryption

Your chats are stored using our battle-tested zero-access encryption, so even we can’t read them, similar to other Proton services such as Proton Mail, Proton Drive, and Proton Pass.

from protons own website.

And why this is not true is explained in the article from the main post as well as easily figured out with a little common sense (AI can't respond to messages it can't understand, so the AI must decrypt them).

The worst part is that once again, proton is trying to convince its users that it's more secure than it really is. You have to wonder what else they are lying or deceiving about.