Hello @Andrew_Millner,
DSD over PCM (DoP) is “DSD playback”. The USB DAC DSD playback capabilities on the AURALiC ARIES G1 are identical using Roon Ready and Lightning DS.
In order to get DSD playback working to the Chord Qutest DAC, you must disable the “Software Volume” option in the Lightning DS settings for the ARIES G1 or on the ARIES G1 itself.
-John