Despite all the concern, facial recognition is getting popular among consumers. Most recent Android and iOS devices have the feature to unlock the device with facial authentication. Once you get used to the face unlock or fingerprint unlock, typing password feels like a tedious, boring task.
Howdy is an open source software that gives you the ability to login to your Linux system with face recognition. Consider it an open source Windows Hello alternative for Linux. Here, your data is stored locally on your computer. Howdy uses the built-in IR emitters and webcam combination to recognize your face. It is built using OpenCV and Python.
See a tutorial at ^How to Set Up Facial Recognition to Sign into Ubuntu and Other Linux Distributions
Missing the Windows Hello kind of unlocking of your system on Linux? Learn how to set up face unlock on Ubuntu and other Linux distributions.