Missing Picking Overlay in Game View

Unity: UI Toolkit Framework

2023.3.X

2023.2.X

2022.3.X

2021.3.X

Repro steps:

Create a UIDocument and show it in the game view by adding it to the scene hierarchy.
Open the UI Toolkit Debugger
Pick the element with the Game View

Expected Result: When hovering the element, an overlay should be displayed.

Actual Result: The overlay is not being displayed even though the debugger highlights the proper element in its tree view.