First off, thank you for all the comments . Had to join to give my thoughts .
I’m all in on Apple . Apple everything including music.
Apple Music integration into Apple products is not meant for Audiophile . That is my conclusion .
After many years let me tell you the best I can do .
1) iPad into Dac . Directly wired through lightning cable into camera adapter and USB into DAC.
Btw , if Apple had USBC you could buy USB to optical cable and no adapter required .
Disadvantage is you have to go to iPad to change in Apple Music every time you want to change or access music.
You would think SharePlay is way to go but , sadly does not work for me as second I plug in my Lightning cable you disconnect SharePlay on my iPad.
What stupidity is this from Apple ? Really ? So so frustrating .
Let me stress again - the f word comes into it a lot !
2) here is best I can do - Apple TV 4th generation . Of course , no optical out . So , HDMI to little adapter box that send HDMI to TV and optical to DAC ( I send to Wiim Pro and then Coax out into ARCAM RDAC into amplifier . Then, icing on cake ,is I can use SharePlay between iPhone/iPad and Apple TV . Why ? Well , no indication of bitrate on Apple TV or Wiim but Apple Music on the SharePlay iPhone tells you the bitrate . Yes upper limited to 24bit/48KHz but , just good to see it on iPhone Music app as some tracks are 16/44.1
Airplay is really not worth it .
Bottom line - Apple - allow SharePlay to work when you output music via Lightning port through cable from iPad to DAC and allow control from another iOS device to allow hi-res files to be played .
THis is not rocket science .
Of course , complete hand off with an “Apple Connect” type product would be too much to ask for . Right now I’d settle for SharePlay to work