Basically on your Start Menu you need to show the long alphabetical list of installed apps, then drag an app from that long list onto your Desktop to create a new Desktop shortcut, the process is the same for Windows 10 and 11, but the steps are different for Windows 10 and 11.
This process only works from the long alphabetical list on the Start Menu.
Windows 10.
Click the button indicated below to show the long alphabetical list of installed apps.
Windows 11.
Click the drop-down menu indicated below on your Start Menu, then change Category to List, to see the long alphabetical list of installed apps.