As you probably know, Apple Music offers various lossless audio formats. Some are 16-bit/44.1 kHz, others are 24-bit/192 kHz, etc. etc. (Whether "high-res" has any benefits is another story, I don't ...
Selling 24-bit "high quality" files on iTunes is just a money making scheme that will make no difference whatsoever to the experience of end users. I do a fair bit of audio recording and engineering, ...