How to reproduce:
1. Create a new project and install the Visual Effects package
2. Create any VFX Graph and open it
3. In the Blackboard, click "+" -> Property -> Float
4. Select the created Property
5. In the Inspector, open the Reference ("?" button) and observe the results

Expected result: The documentation is opened
Actual results: The missing page of documentation is opened (https://docs.unity3d.com/6000.3/Documentation/Manual/class-VFXParameter.html)

Reproducible with: 6000.0.55f1, 6000.1.15f1, 6000.2.0f1, 6000.3.0a4

Reproducible on: macOS Sequoia 15.5 (M1)
Not reproducible on: No other environment tested

Note: Tested and reproduced with the most Properties