Face unlock is ... inconsitant, and support in apps is sparse. I have a 4XL (personal) and 2XL (work), and I never run into issues with the 2XL, it reads the fingerprint as I take out of my pocket, and it is open as I look at it.
4XL - take it out, and 80% of the time it works, the other 20% I spend time moving it up and down, and just entering the pin.