While we don't really need to think about indirect lighting with Cycles, it becomes more concerning with EEVEE to get better results.
Screen space reflection, Reflection probes, irradiance Volume, get the best reflection and indirect lighting in your Blender EEVEE renders.
Very cool tutorial. We are currently working on a lot of pre-vis renders and this will save a lot of time and hassle not having to bake indirect lighting! Thanks for sharing with the Blender community!