I am very annoyed with how this has been going. For several months, I have been able to upload USDZ digital models of my products with no problems. Then, all of a sudden, when I upload them in the Shopify product editor, the edges of the images become blurry and distorted. I talked to Shopify support, and they have done anything but address the fact that there is an issue with the back end of Shopify regarding USDZ files.