I'd have to go back and find the science article, but it was something about sunrise, sunset which would often provide end of spectrum red or blue, while full daylight provided a lot of green light spectrum. Plants having to balalnce processes in full spectrum would overload/oveheat so they evolved to reflect or transmit through 80% of that spectrum.

They mostly use red and blue for photosynthesis because those seem more steady during daylight hours in various seasons and hours of the day. Cloudy day still gets infrared end through etc.

The green overlaps into red and blue zones. Its not so much that it is higher energy than blue, but a wider amount of spectrum total energy the plant wants to avoid.