Is Apple Music lossless/uncompressed?

Anytime you use Apple products or services you enter the Apple 'walled garden' that only works well with other Apple products. Some people like to refer to it as a 'walled jungle' to reflect the complexity and and challenges within - see discussion above. I tend to agree, and find other industry standards far more agreeable both technically and sonically.

Tell your friend to go with Tidal and Qobuz instead of Apple Music as they sound better than Apple Music and will always be lossless no matter what device you are using. Tidal now offers Tidal MAX, which is hi res FLAC files up to 24/192 just like Qobuz. Tidal has recently dropped its MQA. Qobuz has bigger selections of hi res FLAC files than Tidal. But either Tidal or Qobuz would sound better than Apple Music even the lossless version of Apple Music. 

Yeah, the multiple different responses here are indicative of Apple’s lack of focus on music and why I even had to ask this question in the first place.  ALAC reminds me of Betamax back in the day minus the superior performance, and it’s not like they don’t have the capital to just hit the ball outta the park if they really wanted to.  In the end I just told my friend to compare Apple Music to Qobuz and/or Tidal, and if he couldn’t hear a meaningful difference in his setup to just go with the one that has the music selection that best matches with his music preferences.  Thanks for all the thoughts/info. 

The Apple Music app on Apple TV is easier to work with than using a phone, (although of course you need a TV to manage it) - it outputs digital over a HDMI cable, but reduces any higher res streams to 48kz

Almost all stereo tracks are 'lossless'.

I find the quality fine for everyday listening.