Perun moto offers a simple, sturdy and affordable solution for installing the phone above the dash of Ducati DesertX - Ducati DesertX GPS R12 Mount with R12 Bar clamp AMPS. This setup works great with various GPS units, but it also works great with the QuadLock cases.
At the moment, I use Samsung Galaxy S22, but any phone with the QuadLock case will work well.
Flat rectangle 4-hole base uses the same bolt pattern as our R12 Bar clamp AMPS, so 4 x M4x12 or M4x15 countersunk bolts are all it takes to fix it.
In order to make room for the USB plug on the underside of Wireless charger head, I had to use a spacer (included with the Rectangular base). If you use standard QuadLock Lever Head, you don't need the spacer.