A:AnswerHi there, I had trouble with this issue also. But then I checked my music app in settings. Somehow my music app wasn't automatically set to allow permission to headphones. Once you set it to allow, it should work.
A:AnswerI currently have a USB-A to USB-C adapter plugged into my laptop. Then the USB-C to 3.5mm adapter plugged into that. I am using headphones and can confirm that the audio and mic work. You have to play with a setting in the sound settings to get it to work but I got it working.