USB Display Adapter not showing in System Report > USB

[AlbanRampon]

Thank you,
The HP USB-C Elite Dock G4 is not using DisplayLink technology, therefore the DisplayLink Manager app won't affect its functionality.
https://support.hp.com/gb-en/document/c05861464
That's an MST dock and Apple macOS doesn't support MST, so all external screens are expected to be the same.

The latest dock in HP portfolio they created with DisplayLink technology is the HP Universal USB-C/A G2.
https://www.hp.com/gb-en/shop/Produc...pt=ABU&sel=ACC

Regards,
Alban