Some limited amount of users have reported Google Meet freezing or green video problems when connected. In most cases the audio stays intact. Computer in worst cases need to be restarted as the computer locks up.
If you have this type of problem, you may want to turn off a setting in Google Chrome called "Use hardware acceleration when available"
This feature can be turned off by entering into the URL line.
Press the slide bar to the off position, then relaunch the browser.