With the following two methods, you can add Microsoft Edge to your Windows 10 desktop.
Video guide on how to add Microsoft Edge to desktop in Windows 10:
Way 1: Add its tile to desktop.
Step 1: Open Start Menu.
Step 2: Click and drag the tile named Microsoft Edge to the desktop.
Way 2: Pin it to taskbar.
Tap the Start button on desktop, right-click Microsoft Edge in the menu and select Pin to taskbar.