My mini led has no dept to it

I picked up an open box S90C and now regret my prior mini led purchase. The picture has do dept to it, flat. The S90C has an almost 3d look to it that looks amazing.

I was fine with my Qn90C but now regret buying it, the colors pop but zero dept to the picture. What to do? I can sell it but don't want strangers coming to the house to for safety reasons. I wish I had just gone all oleds now. Or is it just my Qn90C that lacks dept? Are there other mini leds that do better?