"Fingerprint gestures" refers to using movements or actions with your finger on a device's fingerprint sensor to perform certain tasks or actions. Full definition
It gets even better as the P10 Plus adds support for fingerprint gestures, but the feature is still limited to a few actions. (nashvillechatterclass.com)
We're also seeing that fingerprint gestures support has been added as a feature. (xda-developers.com)
Are you disappointed about the lack of fingerprint gestures? (techtimes.com)