I have a few personal domains registered with Njalla and have for years with no issues. They’re not hosting anything shadier than a Jellyfin login (on a non-Njalla server) - and so I’m not worried about getting denied access. And I like not having my real details in the WHOIS.
For the unaware, Navidrome is a very slick and fast Subsonic-compatible music streaming server, which works excellently with large libraries. I’ve tried a bunch of options for streaming my music files over my local network and Navidrome has been by far the nicest. I use it with Tailscale and the Substreamer client on my iPhone so I can play my tunes when out and about.