These are the instruction to change app icons for your home screen in iOS 14
1. Open the Shortcuts app
2. Add a new shortcut by clicking the plus button
3. Click the Add Action button
4. Click on the Scripting option
5. Click the Open App button
6. Choose the app you want customized
7. Click the ellipsis icon
8. Click the Add to Home Screen button
9. Choose a name, then tap the icon
10. Click the Choose Photo button
11. Choose your icon, then click on the Add button
12. Enjoy your new aesthetic home screen