Hello ! I'm Aymeric, an independent advisor, and I'm here to help !
To create a desktop shortcut for the Minecraft Launcher, open the Xbox app (preinstalled on your PC) and locate Minecraft in the left corner.
Right-click on the game icon and choose “Manage”. A new window should open : click on the “Create desktop shortcut” button. You should be good to go.
Please let me know if you have any other question !