I just recently bought my first game on Stadia (Division 2), and played it last night for the first time. I used my Plantronics Blackwire 3225 headphones I have for working from home during the pandemic, and the audio for the game was reversed. I looked for options in both Stadia and within the headset's settings, and found no way to remedy this. I will try playing without the headset today to see if it's still backwards. All other things I use the headset with are not reversed, which leads me to think it's a Stadia issue and not a global issue with the headset at large. Any suggestions?
@NotMySky That's an odd one, and not something I've encountered with either my Bluetooth earbuds connected to my Chromebook/phone or a wired (3.5mm audo jack) headset plugged into the controller for playing on Chromecast. It may have been a transient glitch, or it could be a bug which the team would need to address. I'd encourage you to use the in-app feedback option if the problem occurs again to let the developers know about the issue.