It pulls & sets a random artwork from the vast Artpaper collection as a wallpaper on your iOS device. Only available for iOS 13. If it says the shortcut can't be opened, go to Settings -> Shortcuts and turn on Allow Untrusted Shortcuts.
A demo version for the Artpaper app. Only 60 wallpapers are available. Join free TestFlight beta to choose from over 1300 images: https://testflight.apple.com/join/2J53lBua
Siri is supported
Widget is supported