Most of those features broke as Spotify changed them in a way that was incompatible with their libspotify library.
Then we had mopidy-spotify-tunigo (tunigo were acquired by Spotify) which supported some of this sort of thing. Not sure what state that’s currently in.
I think mopidy-spotify-web supports some of this stuff and likely still works since it’s uses the Web API.
We do need to address this fragmentation and merge all the working stuff into mopidy-spotify…