Can't share new app window that is opened after a meeting has started
While you are in a meeting, you can share a single application window, but only if that application was opened prior to the meeting starting. If you are already in a meeting & then open an application (say a Word document), that window still does not show as a sharable choice in the screen-sharing options.
Users expect to be able to open a Word document (ppt, xls, etc) after the meeting has started & be able to share just that window without having to share that whole screen.
Pascal Galeazzi commented
I second this, only realized it when a customer complained. I expected this to be no brainer available to end users but seems not