If you tag the product on the app then it will display those images on the product page when your customer on that product. You can display this gallery as a lookbook so when customers visit the product they will get real life images from the gallery.
Step1: Go to app
Step2: Go to the Shoppable gallery -> Product gallery
Step3: Adjust the settings as per your needs
Step4: Copy the code and paste it on the product template where you want to display it.
Step5: Here is the gallery how it looks like in your store.