If you are having problems with your microphone not working because HOTS does not appear in the “Microphone” pane of the privacy settings, this old thread ( No Microphone will work since OSX Mojave update ) will help you. NOTE: the path is incorrect as the location of the com.apple.TCC file has moved. INSTEAD OF:
~/Library/com.apple.TCC/TCC.db
you should use
~/Library/Application\ Support/com.apple.TCC/TCC.db
And viola - fixed.