saw a model similar to this, remade it with better features and stuff

this works with almost any phone, and has 2 holding angles

if you are going to print off of the stl, I recommend you print with 3 perimeters for sturdiness. Any rigid filament (PLA, PETG, Nylon, ABS) works well.

the built in 3mf is using a1mini settings with pla for the filament, it already has the 3 perimeters added in