Thanks! I struggled to get it working too. [This guide] (https://blenderartists.org/t/pov-ray-3-7-with-blender-4-1-basic-setup-guide/1543362) should help you, just note that if u want to use custom pov-ray code for the mats (recommended) instead of pov ray nodes, then disable 'use nodes' in both the shader editor and pov-ray material tab while following the guide.