Since the iOS 14 update, iPhone and iPad users have been ... tap on the faded blue part of "Open App" to select which app to customize, then tap on the three lines icon to the left of the X ...
Android has had the ability to do so for years, and users have figured out creative ways to change app icons on iPhone and iPad, too. Contrary to how restrictive iOS has been for years ...
The change applies to the app in the dock and Launchpad. If you want to go back to the original icon, just open the ... macOS than it is on an iPhone or iPad. Every bit of personalization goes ...