iOS and iPadOS 14.3 are currently being tested with developers and will release publicly later this year.
If your device is not using iOS 14.3+, the shortcut will do nothing. This will allow you to change the wallpaper on your iPhone or iPad by simply tapping an icon on your Home screen. This step-by-step tutorial will teach you how to use a simple third-party script that takes advantage of a new wallpaper automation feature in Apple’s Shortcuts app.