https://github.com/IridiumIO/CompactGUI/blob/2626979ce3943fd5ac3bb35b846b452aa5f778ed/CompactGUI/MainWindow.xaml#L10C44-L10C54
I believe this code is what has the application appear as "MainWindow" in the Windows Taskbar.
I tried using Visual Studio but fail to build to test if my theory is correct, something at my end.
May you alter this to show the name of the app in the Windows Taskbar?