It, as with the last gen iPad Pro, does have Liquid Retina XDR:

Last gen: https://support.apple.com/en-us/HT212527

This gen, right on the product page: https://www.apple.com/ipad-pro/

The first page isn’t for the 11” model, and the second page claims it has a “Liquid Retina” screen capped at 600nits not a “Liquid Retina XDR” screen.

My bad. I completely missed the 11" there. And, I didn't realize there was a difference. That is disappointing.