Spotify premium has 320kbp/s as an option. You are not going to hear any difference from that versus FLAC/ALAC/PCM audio. This has been debunked to death many, many times over.
It's definitely better than non-premium spotify, though. Bandcamp is also a good place to find FLAC-quality files and keep them forever without DRM.
It's definitely better than non-premium spotify, though. Bandcamp is also a good place to find FLAC-quality files and keep them forever without DRM.