The convenient thing about using Claude via Telegram is that you can provide all of your private and proprietary information to US intelligence and Russian intelligence at the same time. (Telegram is not end to end encrypted.)
The e2ee you can “enable” is a homemade custom cipher and cryptosystem. There are no open source implementations.
I have no evidence that Telegram is an FSB honeypot. What I do know is that if the FSB had a honeypot chat platform, it would look and function exactly the way Telegram does.