Hey there @erinliliana!
Don here from Shopify.
Thanks for sharing your query with us here in the Community.
If you can proceed to the Online store > Customise theme menu for the Minimal theme in your Shopify admin, we can take a look at our options in terms of product pages there.
To see your product page options, you would just need to navigate to any product page via the store preview in the Customise theme menu, or by selecting product pages from the drop-down in the top left:
When viewing a product page in the store preview here, you'll see your options for product pages shown in the menu on the left.
Can you head there and uncheck 'Show dynamic recommendations' there if it has already been checked and let me know if this removed the preview for you?
If not, could you share a link to your store here so we can check this out in some more depth and see what else we might be able to recommend?
I look forward to working on this with you.