https://tsf.telegram.org/manuals/e2ee-simple

As said at the end of my post: don't let the perfection kill the excellency.

If you and you friends are comfortable with a full non custodial path that's wonderful. Please share the details after the Telegram critic so everyone can learn and choose.

A personal view: I chose to use the proposed solution to support Calle's work and to have a separate easy wallet for tips/zaps so I don't flood the main one history.