I have the same problem. I still have my Note9, and the grays on my new Note20Ultra are very green in comparison.
Mine too, on Qualcomm cpu
Me too. I have green tint in low bright.
Galaxy noye 20 ultra
Try dropping the Green slider to halfway, in the White Balance advanced settings. Dropping it to halfway usually fixes this.
I have the same issue. Is there any solution or should I send my phone to samsung service center to repair it ?