ARQuickLookPreviewItem only provides API for specifying values for allowsContentScaling and canonicalWebPageURL parameters.
(https://developer.apple.com/documentation/arkit/arquicklookpreviewitem)
However, there are many more parameters that can be specified from a link originating from Safari.
EG: applePayButtonType, callToAction, checkoutTitle, checkoutSubtitle, price, custom, customHeight
It would be great to get support for all these parameters in the ARQuickLookPreviewItem API so that apps can integrate richer features of ARQL.