Your scene is missing an exponential height fog component. Is realtime capture turned on for your skylight? I don’t think it is from looking at this video (this is a 4.26+ feature).
Here’s an example of some of the settings I have for the day and night positions that I have saved, this particular project doesn’t have a day/night cycle, just a toggle, but if it did I could just transition these values.
Here’s what the scene looks like with those settings during the day
and during the night
