Usually, when you submit an application to the App Store, Apple requires you to provide screenshots of your app running on different iPhone models with varying screen sizes and aspect ratios. Traditionally, this would involve manually installing the test application from TestFlight on each required device, running the app, and taking screenshots.
The Screenshot Automation feature simplifies this process by automatically generating the necessary screenshots for different iPhone models and aspect ratios. You do not need to manually install the app on different devices or worry about capturing the screens with the correct aspect ratios.
This feature saves a significant amount of time and effort, eliminating the need for manual handling and ensuring the screenshots accurately represent your app across different devices. It also helps streamline the app submission process to the App Store, making it easier for users to launch their apps more quickly and efficiently.