Can I ask what you mean by "having music playlists clutter up my video playlists? I use YT music (along with my local music library) specifically because it uses YouTube content - which means that all sorts of live / niche / otherwise hard to find music is there. However, my YouTube music playlists are not visible on "regular YouTube".
I made playlists in YouTube Music, and when I went to save videos to playlists on YouTube, it would show everything. Without making some kind of naming convention with prefixes, it was hard to know what was from YouTube Music and what was from YouTube. I just had to remember, which gets harder as the number of playlists increased. This dissuaded me from using more than 1 or 2 playlists, which limited the overall value of the service.
