According to my findings, Vendor ID from HidSharp is not exposed from HIDDevices API in any way.
https://github.com/search?q=repo%3ADevDecoder%2FHIDDevices%20VendorID&type=code
How do I simply filter by VID/PID and Usage Page? I need two devices (PIDs) from a specific vendor (VID) and a specific Usage Page; not "all gamepad controllers" which this project seems to be focused on. Is it possible?
Also, what's up with HidSharp not having its source code available? SeekHisKingdom/HIDSharp#1