Solved
OVROverlay, underlays and Universal Render Pipeline (URP) doesn't work?
Has anyone gotten that combination of things to work? Overlay works just fine with URP, so I'm assuming it's my attempts to punch out a hole that are failing. I'm assuming Oculus' shader doesn't wo...
Okay, got it working, was a foreheadslapper where I'd forgotten I'd turned off a certain Layer on my camera -- the exact layer I was rendering my punchout quad on... eyeroll.
My final URP punchout shader is fairly simple, I can share if anyone is curious.
