Hi Mike,
This KB page on RAAT and this thread on clock ownership may be of assistance in understanding how Roon Ready devices work with Roon in comparison to other systems and protocols.
There are other opinions about this. Different bit perfect players or computers can use more or less intensive processing leading to noise propagating via ground connections. Ethernet with appropriate ground isolation (microRendu) optical or Wi-Fi (Aries) can avoid any galvanic connection which carries such noise.