Repo steps:

1. Go to Window > Package Manager > Search Visual Effect Graph > Check Unity Registry > Make sure VFX graph is installed
2. Assets > Create > Visual Effects > Visual Effect Graph > Name it anything 
3. Project Window > Assets > Double click the new VFX Asset > VFX Graph should appear 
4. Click on the Spawn Box at the top of the graph > VFX Basic Spawner should be visible in the inspector window 
5. Click on the Question mark to the right of the inspector window
6. Unity Web page should open that displays "Sorry... that page seems to be missing!" 

Expected Result: Documentation page with the data should be displayed for the user.

Actual Result: Web page displays "Sorry... that page seems to be missing!".

Happens also with at least:
- VFX Planar Primitive Output
- VFX Parameter
- VFX Basic Update
- VFX Basic Initialize

First noticed in: 2023.1.0b6

Reproducible with: 2020.3.46f1, 2021.3.20f1, 2022.2.9f1, 2023.1.0b7, 2023.2.0a5

Platforms tested: Win 11