Don't bother with the G3 if you want it for VSS from consoles. It can't receive multichannel from current consoles as they are limited to stereo output from USB and the G3's optical input appears to be for chat audio mixing purposes only.
For VSS on PlayStation, you want something that can receive a dolby digital 5.1 bitstream via optical to mix into VSS. That would be something like the Sound Blaster G6, Astro mixamp etc. Same for Xbox unless you prefer Atmos for headphone or Windows Sonic.
For Switch, you're out of luck as far as VSS through dedicated dac/amps go. You'd need an AV receiver or TV with its own built-in VSS for headphones or a device that could transcode linear PCM received via HDMI into Dolby Digital 5.1 for output via optical to a compatible gaming dac/amp.
Thanks again for all the help
Maybe the Mobius or X3 still is the best route i get the full experience on the PC and still connects to consoles in stereo