I’m not sure they are lying. Yes, they’re not E2E but I don’t think they claim to be by default, do they?
they claim to be "encrypted". if I just make a new chat it will not be encrypted. this is false advertising. furthermore this highly advertised feature has artificial limitations, like that desktop clients can't use it. it also cannot he used with group chats. so much for being "encrypted".
to be fair there is no way to verify the google play distributed app has been built from the published source code. there are also people arguing that the closed source google components built into it could work as a backdoor