Close app

Closes any app and leaves the phone on its home screen. USB phone: closes it by its id, and the phone confirms. iMouse phone: brings the app to the front unless it is there already, then opens Shortcuts on top of it, so the app's card rests in the middle of the app switcher where its name can be read; waits for the cards to stop moving, checks the name, swipes the card up, and checks it is gone.