>Now that facemasks are normalized in the American public, surely this tech is pretty inert now?
No, facial recognition is based on the distance of points on your face (nose, center of eyes, eyebrows, etc). A mask only covers the lower half of your face. It may make facial recognition slightly less accurate but it still works. Casinos have been using facial recognition for some time to detect individuals who have been banned. These banned individuals have gone as far as hiring professional make-up artists to change their appearances but facial recognition still works due to the fact that certain points on the face (e.g. distance between eyes) cannot be altered. The accuracy is reduced but there's still a large enough confidence interval to cause an intervention by casino security.
In that case, are masks + sunglasses enough? Or should a hat that covers the ears be thrown in as well? I think that combination should still pass as fairly normal, especially in sunny locales.
No, facial recognition is based on the distance of points on your face (nose, center of eyes, eyebrows, etc). A mask only covers the lower half of your face. It may make facial recognition slightly less accurate but it still works. Casinos have been using facial recognition for some time to detect individuals who have been banned. These banned individuals have gone as far as hiring professional make-up artists to change their appearances but facial recognition still works due to the fact that certain points on the face (e.g. distance between eyes) cannot be altered. The accuracy is reduced but there's still a large enough confidence interval to cause an intervention by casino security.