As shown in image.
Expected bahavior is to show the last used window in the collection, at least the native taskbars in Windows 10/11 just acts like that.
Of course I known that "hover on the icon, get the preview tabs, click the preview tab and then show related window" is a way to pop up the window, but they are two different functions in my view.
Start11: V2.08
OS: Windows 11 23H2 22631.3593
Other Application: ExplorerPatcher 22621.3527.65.2 (Without customizing the taskbar)