This is yet another phone stand. This one is meant to hold a phone with a rugged case (my phone with case is 12.5mm thick) on one side and on the other side, one without a case or perhaps a small tablet, like a kindle.
The design is print-in-place and if you want a cool pattern on it, skip the top and bottom layers, increase perimeters to 5 or 6 and choose your preferred infill. I printed it with Honeycomb at 15% density, 0° rotation and it looks amazing!
The author marked this model as their own original creation.