I've had a problem for a few months now my Fortnite Voice Chat is not working. I know it's not a mic because I can't hear people either. I also set the mic / output device in the settings in Fn.
A common mistake is that you have activated Push to Talk. Go to the options and the voice chat menu. If there's push-to-talk somewhere, change it to open microphone
The problem is that my voice chat doesn't work at all, that means I don't hear any: F