So is PDO (Pixel Depth Offset) not compatible/visible with Path Tracer?

I have been working on a small environment for a cinematic and wanted to transition some dust piles and stones into the walls of the scene. I usually do this with the Dithering Temporal AA node in the materials graph but when switching to path tracer the effect is loss.

My question being is it not supported or am I missing something? Looking online I have not found a clear answer and I feel as though I am missing something?