I had two docks in my home for my Switch 1, including a dock at my computer for when I wanted to stream games to my Discord friend group. Discord lets you just stream directly from a capture device (a Razer Ripsaw HD in my case) with audio; before they had that option I could use OBS.
Just got my second Switch 2 dock and set it up exactly the same way, but while video will stream over Discord, audio will not. I tried both my old HDMI cable and the new one that came with the Switch 2 dock, changed various audio options on the Switch 2 itself, started Discord as an administrator, updated the Razer Synapse software that talks to the Razer Ripsaw, tried both directly through Discord and via an updated OBS: no audio gets passed through (though I do hear audio via my own headphones on the Ripsaw's pass-through headphone jack).
Does anyone have a similar setup? If so, did you encounter the same issue and manage to solve it? Did Nintendo or Discord change something that makes streaming Switch 2 audio over Discord impossible? Any help would be appreciated as I want to stream Donkey Kong Bananza for my friends. (And no, not via GameShare.)