A musician exporting a CD-quality file from their audio software is like a graphic designer exporting a JPG to send to the printers.
Massive kudos to those artists who release their music in the format in which they recorded it. I'm collating a list of hi-def releases here to get people started:
oldandnewstuff.com/2021/07/10/high-definition-music-where-can-i-get-some-part-1/