How much would the effect be lost if you put a high gloss coating over it? You would obviously see all the specular reflections, but would the shadows look any

How much would the effect be lost if you put a high gloss coating over it? You would obviously see all the specular reflections, but would the shadows look any different than a normal black at that point? I’m guessing it would be kind of like LCD vs OLED—deeper blacks you mostly notice only in very dark scenes?