Your Android devices have a status bar icon that shows a microphone whenever an app or service — even Google's own services — ...
If you are trying to access the microphone in Google Meet ... Open the official website of Google Meet (meet.google.com) and click on the settings gear icon visible on the top-right corner.
Click the gear icon to open the call settings. 3. Select the dropdown under the "Microphone" option and select the appropriate microphone. 4. Click "Done." How to turn on microphone on Google ...