The Constrain Crop checkbox disappeared from Lr 9.5 (Desktop, Mac) under geometry

Starting with Lr Desktop 9.5 (issue is still present in 9.6) the Constrain Crop checkbox disappeared in the Geometry panel. Meanwhile, it's still available on the iOS versions.

The checkbox disappearing was concurrent with the introduction of Generative Expand. I don't always want to expand my image when a crop will do fine. Save the tokens for something else.