http://qvt3o2ipzxx3gtoyafd3ptqwsxjs52enlwlxuryn2xjkm7hnp5icd6yd.onion/coyim/whats-new-v04/introduction/2022/02/13/whats-new-in-v04-improved-security.html
Fundamentally, when connecting using an onion
service, your traffic will never leave the Tor network at all, before reaching the server. However, not all XMPP servers
offers support for onion services, and it can sometimes be hard to find the information for those that do.