UI Debugger element picking prioritizes UI Viewport behind the Game view

Steps to reproduce:

1. Create and open a new project
2. In Hierarchy, 'right-click -> UI Toolkit -> Standard Elements -> Button'
3. Open the UXML in UI Viewport and dock the UI Viewport next to Game view
4. Pan in the UI Viewport canvas so that the Button lies along the top edge of the window
5. Focus Game view
6. Open 'Window -> UI Toolkit -> Debugger'
7. Click on 'Pick Element'
8. Hover the cursor over the Button in Game view in different places
9. Observe the behavior

Actual results: At certain locations (usually where the Button would be in UI Viewport) 'unity-panel-container-x' (x = some random number) is received, and the Button layout is not shown

Expected results: At all locations button in the Game view ("PanelSettings") is received, and the element layout is shown

Reproducible with versions: 6000.6.0b1, 6000.6.2f1, 6000.7.0b1, 7000.0.0a1

Can’t test with versions: 6000.0.84f1, 6000.3.24f1, 6000.6.0a7 (No UI Viewport)

Tested on (OS): Windows 11 Pro (25H2)

Notes:

• Apparently, UI Toolkit Debugger prefers UI Viewport over Game view even when the window is behind Game view (both docked on the same panel)