It's a Hanns-G 28 inch monitor model HZ281H
I checked the monitor settings, and the option for "xcontrast" was indeed set to "yes"
Could this be the problem?
Assuming "xcontrast" is their trade name for dynamic contrast
So, I changed the "xconrtast" setting to "no" and we will see
it would be amazing if this is the fix- nothing like good ol' K.I.S.S. eh?
Thanks so much for the tip.