but what you fail to realize is that those who are complaining about the OneUI 2.1 are valid. check out Twitter look at the pics of those showing that the update turned their phone screens green. check out YouTube they are saying some of the same things. so this isn't a lather-rinse-repeat shade for everyone. To me it sound like it's cut and dry.
I can't believe the green screen issue still hasn't been acknowledged by samsung.
S9 Plus Screen Flickering, Green Tint/Bars, Black Screen Issue - Samsung Community
Samsung Rolls Out New Update To Fix The Galaxy S20 Ultra's Green Tint Issue
Keep an eye on this Samsung document. When it gets updated the One UI 2.1 software will be available for the US Unlocked Galaxy S9 Model SM-G960U1.