on the M5P, yes.

iinm, another use of the TOF is the improved performance at night. i can actually unlock the phone fairly well in dark areas. those phones with just front cam (no extra TOF)... same place, harder to unlock and i usually end up unlocking with fingerprint instead for those phones.

3d tof sensor is like face ID on iphone. Unlock with 3D images instead of 2D. In theory, is safer and can't be unlocked with just picture of the owner. can be used for banking apps biometric unlock (android apps are not optimised). Usual 2D sensor also requires light to unlock in dark area, that's why the usual phone often crank up screen brightness to max for unlocking. 3D sensor using infrared to scan your face instead.