To save y'all a click: The alleged biometrics in question are the use of facial-recognition software on photos uploaded to Google Photos (without informed consent from the user).
I remember google popping up a consent to store the AI models for the facial recognition locally on my phone (not in the cloud)! If this is the case, the lawyers are wasting their time, I guess.
I've never received a popup like that, nor ever heard of anyone receiving one. Are you in Illinois?
UK. I recently bought a new phone and when I opened google photos app for the first time, it asked to store local trained models to enable AI features for the app.
That gets the event of the person who's phone it is, not the people in the photos.