In this article, you will learn how add Instagram feed gallery to product page.
Once you create a feed, click on the feed > scroll down to Show only posts with relevant tagged products on product pages for product page > tick on the box to activate this feature.
With Theme OS 2.0, you can add an app block from the Theme editor product page and use it.
You can take a look at the details here
You can take a look on how to add Instagram feed in Vintage Theme (Theme OS 1.0) and page builder product page here