Just received this new "feature" update from microsoft through an org partner -

With "Voice isolation", you can enjoy clear and uninterrupted calls or meetings, no matter where you are. This feature uses AI to filter out all background noise, including other people's voices. By leveraging your voice profile, this advance noise suppression capability ensures only the user’s voice is transmitted. Whether you are in a busy office, a noisy cafe, or a crowded airport, you can communicate with confidence and clarity. "Voice isolation" is powered by our advanced deep learning, speech services, and audio processing technology, and it shows our dedication to solving user problems with AI and enhancing audio quality and experience.

Don't worry we won't do anything 'wrong' with your biometrics -bill gates probably.