Just a quick observation. I was looking for a good yacht rock playlist to brighten up the lockdown and found the ones on streaming services had a lot of dodgy choices - Michael Jackson, George Benson, Daft Punk (!) etc - so I tried finding one on Sonos Radio. Not only does the Sonos Yacht Rock playlist include all those strange selections, it is listed as being by the Deezer Rock Editor.
Which doesn't help me find a good playlist, but also makes me wonder whether Sonos Radio is underpinned by Deezer.