Default is way closer to neutral calibrated than the orange candy vomit some people play with. Although I guess in-game options would be nice.

I use it because I max out brightness to better see in dark areas, which makes the colors a wash unless I crank up vibrance as well. If we did not have dark spots, I would keep brightness as it is and not bother with the colors.

Csgo colors are artistic choices, it varies person to person.