Hi. In this video demo, I have shown the Lightning Generators based on geometry nodes in Blender 3.3x. Two lightning generators are 1) Lightning Generator, which generates 2D/3D lightning from a curve in space, and 2) Surface Lightning Generator which generates lightning on a mesh surface or surfaces that can be controlled with a curve. Both generators provide full control over lightning for artists. Download links are in the video description (v1.3).
"This tool generates Lightning from curves and meshes with full artistic control."
Happy Noding... :)