First try a Force Restart. It may take a couple of attempts to get the key sequence correct and the last step of holding the side button until the Apple Logo appears could take up to 15 seconds. Ignore anything else on the screen during that time.
Force restart iPhone - Apple Support
If they still appear, review the App Library by swiping all the way to the left and swipe down on the screen to view the apps in alphabetical order. Check for apps that have the same icon. I did notice the Amazon app has 2 different icons, so the app may be different as well. You can have apps showing the same icon by using a Shortcut for the app and also if you added a Web App that opens the page in Safari.