It’s ironic we play in RGB, but our eyes only give us RG…
Expansion of greenery (unflattening, increasing variety of greens)
Photo by andabata CC-BY [Play Raw] meanwhile in the forest...
Sky blueing:
Photo by freepenguin84 CC-BY How to get a pleasing result in a quick way? (Comparison to Lightroom)
Plants are tuned to sunlight and we sense green. Green = food.
Iron oxide is red, blood has iron and we sense red. Red = ouch.
We don’t sense blue, we perceive it. Dust in the sky filters sunlight and turns it blue. Water reflects the blue sky. Landscapes will be reflective of the blue sky also. Some languages like Gaelic and Vienamese lack a word for blue where it’s usually called by the (or one of the) words for green.
None of this matters unless you are calibrating your monitor regularly, because they are subtle adjustments, and any adjustment made under miscalibration is likely to detract from the naturalism of the underlying photography.