This video covers re-lighting an environment that I made almost 6 years ago. The environment was created in an earlier version of UE4 and primarily used baked lighting and a lot of spot and point lights to paint the scene and make it feel correct. With this video, the goal is to demonstrate how to get rid of all of that and use the new lighting system in UE5 to get a realistic lighting look.
https://dev.epicgames.com/community/learning/tutorials/4OEE/re-lighting-an-old-ue4-environment-in-unreal-engine-5