On windows I got to Settings then sounds, then recording, then advanced, then toggle listen OFF. Then that works and makes it so I cant hear my self.
Tried running the logitech gaming software with wine no success and there is no loopback module running.
Kernel: 4.19.36-1-MANJARO OS: Manjaro Linux x86_64
11 Answer
Turn off audio loopback from microphone
Assuming you want to mute playback but not the mic itself, this thread has the solution.
Press f6 to navigate to the g430 soundcard once you're in the menu, then arrow keys to select playback and arrow down.