I will try that when I have some time. Right now I uninstalled Stardock 11, pinned File Explorer to the taskbar then reinstalled Stardock11 and now shows up. When I do your suggestion my choice is to Unpin from taskbar, so I will just leave it there for now.
Now I am looking for how to not have a taskbar icon for every email I have open, every Word document open, every Excel spreadsheet open, and every File Explorer open.