The flap goes under the screen when opened. In portrait I open the flap like e.g. a Manga or a Quran.
So the button are protected when the flap is closed.
BUT that means that you will either have to make a hole for the camera OR fold the flap all the way over for taking a photo.
I keep the inner shell of a P20 pro flipcase with the camerahole at the top, bt remove the whole flap, so it is glued on the other way.
Let me do a few photos, just a sec....
Add:
And yes, some of the cases i got are made with more care than other - this one so sloppy that I eve