https://support.google.com/googleplay/android-developer/answer/9866151#screenshots&zippy=%2C%EC%8A%A4%ED%81%AC%EB%A6%B0%EC%83%B7
By adding preview assets that showcase your app's features and functionality on its store listing page, you can help your app attract new users on Google Play. Feature graphic, screenshots, short description, and videos are used to highlight and promote your app on Google Play and other Google promotional channels.