FLAC is much closer to lossless quality, but it is not totally lossless. To be honest, I'm used to convert Spotify music with lossless quality from using the tool-Spotify Music Converter for Mac. It is designed for all Spotify free users to convert music to MP3, AAC,etc with lossless quality. After that, you can download Spotify playlist to MP3, play Spotify music on any devices without limitation. It is the best Spotify downloader mac. Hope this tip is useful to you.
Can you hear the difference?
Try this and see if you can tell the difference between lossless files and compressed. I got two out of the three correct yet I missed one even with my "young" ears. I'm using Sennheiser HD 650 phones on a modified MF headphone amp. The purpose of this fun little game is that Spotify is doing some testing with loss-less music. It's just something you can have fun with, would be interested in what this forum scored!
https://www.theverge.com/2017/4/5/15168340/lossless-audio-music-compression-test-spotify-hi-fi-tidal
https://www.theverge.com/2017/4/5/15168340/lossless-audio-music-compression-test-spotify-hi-fi-tidal