As for MQA, don’t worry about it. It's just their hi-res nonsense and nothing to do with lossless(16/44.1) or atmos(DD+/metadata) tracks. Instead of straight up 24/192 tracks like those found on Amazon Music Ultra HD or Qobuz, Tidal requires two devices that support the MQA “unfolding” process for 24/192. So, the streaming device AND the DAC have to support it. Apple isn't much better and requires an external DAC for 24/192 from iOS device or Mac. HDMI from Mac and Apple TV do NOT support 24/192 and are capped at 24/48.
For those only interested in two channel CD quality 16/44.1 tracks, there are now many streaming options such as from Amazon Music(HD), Apple Music, Deezer, Qobuz, Tidal… and others.