This is a scene that I created originally for ue4 using purely dynamic lighting. (
https://ad67.artstation.com/projects/eaLGmD) This pic is from the imported scene in ue5 and using Lumen. So far I am very impressed with how Lumen works and how everything is well integrated....some issues exist that hopefully will be ironed out in the final release but overall it is a wonderful way to light.