For whatever it’s worth, I found Deezer extremely frustrating while using the free year of it I got with a Sonos purchase. I would run into inconsistencies and errors in their catalog several times a week, and despite submitting support requests, these were never fixed. A common example would be several artists with the same name but vastly different styles of music and from different decades clumped under one entry. It felt like a music service run by people who didn’t care about music. This is much rarer in Apple Music and Spotify though still a problem on all services.