Is there a way to get an Orthographic Cylindrical camera lens in Karma (ideally XPU).

Been setting up some scenes that need it and thus far the only option seems to be Redshift as the Karma Lens Material set to Cylindrical gives vertical perspective.
It would also be great if there was FOV controls but that's secondary.

CVEX lenses still don't work in XPU right?
Is there maybe some way of diving in and editing the Karma Lens Material implementation?