M1 Mac Mini, Mac Studio - Universal Binary - Peformance?

He monitored his CPU, GPU, memory usage and energy consumption for a few days and noticed nothing out of the ordinary. If I remember right, he told me that his Studio Max uses an average of 11 to 15 W of energy. My Ultra consumes about the same, maybe a little bit more, without having to scale.

2017 or 2018 MacBook Pro.

Yes, but the monitor is newer. It was acquired later.