Hi @Giovanni_Chiozza, please see this help document. help.appsheet.com - Using Data from Google Forms The problem is that the Google Forms API does not give us the information about the image used. So we stick in a placeholder and you will need to modify it with a url for the image.
Images and Videos Google Forms can contain embedded images and videos. Although AppSheet forms can as well, the Forms add-on is unable to extract embedded image and video data during the automatic app creation process. These fields will be given variable URLs in the generated app that you should update in the AppSheet Editor with correct URLs pointing to your image or video content. Using Data from Google Forms help.appsheet.com