Spotify sucks on Android too - so idk what they think they're doing. I think iOS (specifically just iPhone) is the only place where they appear to work on improving their app.
I don't think so, least in part. Spotify is continuously petty against apple (for good reason) but their users always have to pay the price and not have features or get them super late. The Spotify app on an Android is pretty good and can't really notice too much difference upon switching back. They've really downsized their app a lot across all three platforms.