I have reshade, and enough brightness not to blind myself on daytime maps, but enough to see into the darkest rooms on maps where it's an issue. It doesn't look much different from my friend's games who don't use filters. You may be able to see more definition in closer trees and stuff, but it's still very much a black void outwards.

So... yes? Nightfall "overpowers" it in a sense? Still works as intended.