This is more à feature request than a bug report.
First of all: Shadow is working great on Chromecast with Google TV, so thank you for that!
The only frustrating thing is that I was not able to switch to headphones thru my game controller…
Indeed, Chromecast does not seem to redirect the audio to that jack audio out port, when I plug headphones into it. Except in the Stadia app, of course ;-)
As the Shadow client seems to recognize the type of game controller, would it be possible to switch Windows audio output to the headphones port of the controller?