Hi. Is there an app that uses the Telegram client and all its cool features but uses end-to-end encryption by default? Imagine using Telegram with the Signal protocol - or even better - with the Matrix protocol. That would be so awesome. Most messaging apps, even WhatsApp, lack sooo many great features. Now imagine someone actually recreating the entire server from Telegram, making everything end-to-end encrypted and decentralized (federated/P2P).
Yes, but if you host them at home (as opposed to a data-center somewhere) it is almost the same as e2ee.
Is not that simple, messages still can be intercepted and if not E2EE it can be read.
You can host the bridge, but the host are somewhere remotely
You can use e2ee with a bridge, it just makes one of the “ends” in “end-2-end-encryption” your server and not your client device (it gets re-encrypted for passing it on further to the client though). Thus if your server is at your own home it is almost the same as true e2ee with your device connecting to the same home network.