Hi sophiashu,
Thank you for your response.
As what you have stated, the issue happens only in Google Meet but camera works fine to other apps that needs it. Yes, you can try to disable/re-enable camera features in **UEFI**and check if this makes any changes. If it doesn't do anything, then you have to check with Google Meet support if their app is having some issues like this on other Windows devices and how they go about fixing the problem.
Kind Regards,
Crest