Changing Camera in Google Meet
Please try changing the camera by following these steps:
While in a meet, click the 3 dots:
If switch camera is available click that, otherwise click settings:
In Settings, select video and then under Camera click the dropdown:
Select the other camera option in the dropdown and then click the X to go back to the meet. If the expected camera is not there try restarting the device 3 times. If it is still not available a return may be needed.