I dunno… But I agree with @Matthew_Hill.
I just spent a bunch of time playing with a bunch of VPN technologies on this thread so that I can access my Roon library, and stream this library remotely, over a VPN, over varied wifi, over great distances, and sometimes, maybe even over LTE, to a Roon remote running on an iPhone 6+.
On the remote side of that configuration, I have an iPhone 6+ talking OpenVPN to my home Linux box running ROCK, ultimately feeding a Chord Hugo 2. Even with all that “mess” in the way, I don’t feel any different about how my Hugo 2/iPhone setup sounds when I’m at home on the same AP vs. remote. The astute will notice, however, that the iPhone offers no wired option, but I still don’t think that’d make a difference in audio quality, given what the Hugo 2 is doing to the data before it plays it.