I agree, "YouTube Music" is not the same. With the regular "YouTube" app, you cannot play your entire playlist specially the long ones without getting interrupted frequently with "Video Paused. Continue Watching?" and other prompts like when the title of a song you are about to play is somewhat questionable according to YouTube (e.g. Killing in the Name by Rage Against the Machine). This is really annoying when you just want to listen without any interruption.