@0xabad1dea Anyway, the likely answer (sorry if you already tried this):

Windows button, type "sound", select "manage sound output devices". Go into the sound device you want from the list and click "Set as default sound device". If that option doesn't exist, it's because it's already set (so they hide it? What?), and the fix may be to set ANOTHER device as default, then go back and re-set the one you wanted as default.

@0xabad1dea Audio in Windows is so incredibly confusing. I know the system quite well, but it doesn't "fit in my head", so every time something goes wrong I have to rediscover it all over again, get confused, and then after 20 minutes remember "oh right, there's a second control panel that looks almost like this one, but subtly different". Also they change it every six months anyway.

OK, the "high five Wikipedia photo" thing is kinda cute. Well done.
https://www.inverse.com/input/culture/wikipedia-high-five-too-slow-photos-mystery-couple-solved