iOS 14: How to Change App Icons on Home Screen
As the trend of customizing your home screen becomes popular in the aftermath of the release of iOS 14, some users are choosing to add custom app icons to their home screen using the Shortcuts app. Custom home screen posted by @BenZhu8. Custom cloud icons from icons8. Replacing default app icons with images of your choosing allows you to freely customize the look of your home screen. Before you follow this guide, you will need to find or make an image for your new home screen app icon, and there are plenty of alternate looks available for download online. The following steps explain how you can add a custom icon, for any app of your choosing, to the home screen. The process effectively involves creating a Shortcut to open an app, and then adding an image to that Shortcut on the home screen. But before embarking on this plan, you should understand there are two major limitations in this technique.
iOS 14: How to Change App Icons on Home Screen
MacRumors published a tutorial about changing the App Icons on home screen in iOS 14.