I left spotify for Tidal about two years ago now because of no lossless, and the answer was the same back then as it is now (please vote ....). I still think spotify has the best interface, so I'm hoping that they will launch a better format in the near future. In the mean time I hope as many spotify users as possible use their consumer power, and take their buisness elsewhere until spotify get it together (I myself would be back in a heart-beat if spotify were to launch a lossless service).
Probably not, but can tell the different between Spotify high and Tidal 16 bit.
I find Spotify fatiguing vs Tidal. Whether that's lossless, or whether that's Spotify applying dynamic range compression to satisfy those using default ear-buds. I suspect so, listening to the same songs on both.
In every other way Spotify is better, just not where it should count.
Unless there's a setting: "Using decent headphones" that I missed.