Raise your hand with gesture detection in Google Meet

Until now, raising your hand to ask a question in Google Meet is done by clicking the hand-raise icon. Starting today, you can also raise your physical hand and Meet will recognize it with gesture detection. To ensure the gesture is detected, make sure your camera is enabled and your hand is visible to the camera, away from your face and body. As an active speaker, the gesture detection will not be triggered; when you’re no longer the active speaker, gesture detection will resume.

Source: Raise your hand with gesture detection in Google Meet