Hello! i think that everyone wanted to not hold phone in hands, or not finding item to support in diagonal position. I present phone holder (stand) which you can use on table. it fits for phones which has size 76mm-160mm-13mm, i think it can be used for larger variants.
In blender file you can change everithing you need in model.
in 3mf file you can look at original model i've printed myself. stl has model, which you can scale in any size.
if you sure in model, you can start print it, its has default settings of cura, using my gcode. PROFILE FOR PLA, 210/60
size of it: X - 99 mm Y - 76.32 mm Z - 78.64 mm time of print: 3 hours 25 minutes uses 32 grams of plastic
Tested on flying bear ghost 5