I config of an alternate icon on the App Store Connect product page optimization. After the app launches, can I retrieve the name of this configured icon through UIApplication.shared.alternateIconName?
alternateIconName
The alternateIconName API will give you the name of the alternate app icon in use throughout the system, if one is selected. It may not match the icon in use by the App Store with Product Page Optimizations. If you're interested in this because you're looking to get data regarding the success of your Product Page Optimization, you're better off looking at the results available through App Store Connect.
— Ed Ford, DTS Engineer