The Funkwhale music platform is alive and in active development, and they’re working on a feature to filter far-right artists off the network. Some Fediverse self-hosters are divided on letting a third party decide what should be allowed in their library.
This seems like well intentioned but ultimately pointless. Nothing is stopping a nazi group from just forking off an older version like how gab did with mastodon, and no currently active funkwhale pods allow right wing content already.