Remove PrivacyBlur

It seems it is no longer secure to blur face.
It is possible to use image processing techniques to unblur or reconstruct a face, and facial recognition technology may still be able to identify a person even if their face is blurred (this is also highly depends on the blur algorithm).

References:
https://scholarworks.uark.edu/cgi/viewcontent.cgi?article=1067&context=csceuht

Instead, blacking/whiting something is a much better option for anonymity. This can easily be done via each device’s built-in annotation feature or through the app that use to share the image like Signal which remove the need for a separate application like Privacy Blur and Pocket Paint.