We can mute or unmute Sound Volume on Windows 11/10 in 8 quick ... He has been a Windows Insider MVP (2020) and currently owns and runs a Computer Clinic.

MicSwitch tool lets users mute or unmute their system microphone using a predefined system-wide hotkey. So, any program that uses a microphone can be stopped in an instant. Launch MicSwitch.

That's why nearly every web browser lets you mute ... select Unmute Tab. Quick tip: In both cases, you can also click or right-click the speaker icon that appears in the URL bar when sound is ...