A UI test opens program preferences and clicks on a path item. That results in an open dialog box. So far so good. I used to be able to simulate shift-command-G which gave me a sheet I could use to enter a known test path. That stopped working, either with Xcode 13 or with macOS Monterey. Or perhaps earlier.
Shift-command-G opens something. It isn't a sheet or it is some new kind of sheet. The problem is I can not see any matching UI element in the Application tree of elements. Recording a test doesn't work, either. Interaction with the element is not recorded.
What is this element? Can it be manipulated with XCode UI tests?