Modifying the order display on the thank you page (app extensions)

I am looking at app extensions as a solution to hide a particular item from the line items on the thank you page. Ideally, I would conditionally render the item based on a product tag or something similar.

The use case is that this product is for shipping insurance and we dont want to highlight it here.

Does anybody know if this is possible w/ an app extnesions or another means?