I don’t really see any false advertising. It is explicitly described as exactly what it is.
“An open source, cross-platform Spotify client compatible across multiple platforms utilizing Spotify’s data API and YouTube, Piped.video or JioSaavn as an audio source, eliminating the need for Spotify Premium”
I guess it lacks the suggestion algo but that’s the privacy compromise I guess.
Probably because of the Soviets. Dividing up Germany was not without risk. Soviet tanks and American tanks were parked across the boarders from each other with rounds ready to fire.