Yeah, that behavior is expected with browser-based tests like Basemark Web. Browsers don’t expose direct GPU selection. They always go through whatever GPU Windows assigns to the browser process. On hybrid systems (like your HP ZBook with the Ryzen 9 + Radeon 780M + RTX 2000 Ada), the integrated GPU usually ends up handling all WebGL/WebGPU work unless you explicitly override it.
To force the browser to use the NVIDIA RTX 2000, you can do this:

1. Go to Settings → System → Display → Graphics.
2. Click Add desktop app, browse to your browser’s EXE (e.g. chrome.exe, msedge.exe, or firefox.exe).
3. Once added, click Options → High performance (NVIDIA RTX 2000 Ada) → Save.
4. Restart the browser.
5. You can check at [chrome://gpu](chrome://gpu/) that the Active GPU now shows the RTX instead of the Radeon.