There is much more to these decentralized names. There is a W3C community group working on decentralized identifiers (DIDs), the DID foundation, the reboot web of trust events,..

You can find 24+ different decentralized identity providers already. See the w3c registry: https://w3c-ccg.github.io/did-method-registry/#the-registry

I would say blockstack.org is one of the leading players in the decentralized domain name system.