What’s the difference in practice, in summer weather? If the ambient temp is 30C in the morning and heats up to 40C in the afternoon, for example, then a paint

What’s the difference in practice, in summer weather? If the ambient temp is 30C in the morning and heats up to 40C in the afternoon, for example, then a paint that keeps things at 30 could replace active cooling on a red house with a brown roof whose surfaces exposed to the sun might even heat up to 50. It seems fair to call paint that effectively reflects the sun’s heat a “cooling” method, because it’s cooling relative to what you’d have otherwise, right?