At the moment it's just a Proof of Concept created by some well-known Monero project contributors.
The main target is a native monero DEX (low fee & privacy) and Fiat <-> XMR because that is missing in bisq. Other coins <-> XMR is possible on bisq.
https://www.reddit.com/r/Monero/comments/mmrchk/im_happy_to_announce_haveno_the_monero_based_dex/