I'm not sure what you're referring to with the Like/Love button. It seems to be the same as it ever was for me, except the UI is different based on whether you're in CarPlay, mobile app, or desktop app, so sometimes it's a heart and sometimes it's a plus sign.

One of my biggest complaints for Spotify is the removal of star ratings, but that's been probably a decade ago at this point. Apple Music has it for the desktop app, but it's missing from mobile.