How to use Light Groups (Blender 3.2 alpha)

Pierre Schiller writes:

Light Groups create a linked list of your lights in the scene as VIEW LAYER passes in the compositor. This is a new feature in Blender 3.2 alpha by @Bone-Studio

THIS IS CURRENTLY WORKING ON CYCLES ONLY. Adjust your denoise and samples accordingly!
Check out how to set up Light Groups in under a minute.

We hope to see this in EEVEE, soon! 🌟