S2421HGF, AW2521HFA, gamma and color complaints

Ok, I bought two Dell monitors, one is the S2421HGF, the other Alienware AW2521HFA. These are new monitors from 2020 or 2021.

Out of the box both have very wrong gamma and color values. The gamma on the S2421HGF is too high, everything looks washed out. And the one on the Alienware is too low, dark levels are crushed. Unfortunately there is no "gamma" setting in the monitor settings. The only solution is to use the gpu driver software to correct the gamma. Without correcting it via driver or software, there is no way to calibrate the monitor, which is odd. If one was to use these monitors with Consoles (PS5 etc.) instead of PC, there is no way to correct the gamma.

Dells monitor departement should really double check on their gamma  + color values. Because oddly, three of the Dell monitors that I had here, all of them have the same green yellowish tint out of the box. Regardless of the preset modes. I had to decrease green offsett to 48%, and green gain to 98% in order to correct the colors. Its interesting that the same settings had to be applied to all three different Dell monitors in order to get semi-accurate colors. That means there must be an issue in factory settings and I suggest a firmware update to fix these gamma and color settings. 

On the S2421HGF the gamma had to be decreased from 1.00 default to around 0.90, and on the Alienware it had to be increased from 1.00 to around 1.10 

So there is actually an issue here with Dell monitors, it doesn't seem to be coincidence that each one of these monitors have the same color issues (green tint) and also wrong gamma values.

Regards.