Quote - Three back to back render images, gamma correction off=0.0, gamma correction 1.0 and gamma correction 2.2. No other changes in render or material room between renders. Render window to follow.

You just achieved exactly the same result as the BB examples, all three images are different.

Gamma 0.0 has color, gamma 1.0 is more in black and white and gamma 2.2 produce a washed and dull image typical with using gamma correction.

PS; Your best image is with gamma 0.0

Stupidity also evolves!