At least this can sit flat on one axis and should stay put when you tap anywhere on the screen, unlike phones with camera bumps in the corner that rock back and forth diagonally

And if I'm looking at it correctly, the lenses will be a bit further (fractions of a millimeter) from the surface when laying like that. I always worry a little bit when laying my current phone down on its back with tiny lens pop-up, how the lens is basically in contact with whatever I set it on.

It seems like this design will make it very difficult to design cases. On most phones with camera bumps, the case ends up sitting flush with the bump and has a hole for it. Here the case would either have to go over the bump (adding thickness) or be attached only along the edge (easy to break)

I never have my phone outside of its case other than dusting - I always have a Spigen of some kind.

I agree with you, but at this point I'm used to cases anyway. If nothing else, I like being able to flip the phone over on its screenside without the screen touching the surface.

I'm having difficulty thinking of use cases where you'd need your phone to sit flat other than alleviating OCD?

Regardless, I'm sure someone will make a case that mostly flush.

To be able to continue using the phone, whilst not physically holding the phone.

For example, reading over some paper documents, whilst using your phone's calculator.

And it kinda looks like a tennis strap?