FWIW With the PS5 I use a PlayStation Platinum Headset via USB to get 3D audio which isn't ideal. I can use my DAC/AMP if the game doesn't really demand 3D sound, but it is a massive shame Sony don't allow the passthrough of 3D audio via HDMI like MS do.
I've spent a lot of time recently looking at options trying to get a DAC/AMP hooked up via USB to Optical (i.e. using a PCM2704 or similar) and just came to the conclusion it isn't ideally ideal. The G6 is flat over USB with the PS5 (either as an optical bridge or directly) and has the 50% max volume issue that most DAC/AMPs have or had with PS5 & PS4. From what I've read the Schiit Hel 2 is said to be one of the few DAC/AMPs that can disregard the host volume as a UAC1 device. So in that sense the Hel 2 might be a very good purchase with PS5 in mind.
I've spent a lot of time recently looking at options trying to get a DAC/AMP hooked up via USB to Optical (i.e. using a PCM2704 or similar) and just came to the conclusion it isn't ideally ideal. The G6 is flat over USB with the PS5 (either as an optical bridge or directly) and has the 50% max volume issue that most DAC/AMPs have or had with PS5 & PS4. From what I've read the Schiit Hel 2 is said to be one of the few DAC/AMPs that can disregard the host volume as a UAC1 device. So in that sense the Hel 2 might be a very good purchase with PS5 in mind.