S3221QS, backlight flashing or flickering FIXED!

Skip to the bottom for the solution. I thought I would share how to stop this monitor from having the backlight flicker or flashing. I bought this monitor for the curve, 32", 4K, and the color for my games. I use it on DP with an Alienware 14 with a 3080.

I was about to take it back, since I tried every monitor setting and it would have the backlight flicker, almost like a really bad auto dim or auto contrast feature. I searched a lot and no one had a answer, some said turn off the DDC which did nothing, others said turn the brightness all the way down which wasn't a solution.  

The problem was I turned on G-Sync for my SamsungLC32G7 240 1440 monitor, which turns it on for the S3221QS too. That is what made the monitor flicker, so apparently G-Sync cannot be turned on for just one monitor. I have to shut it off when I play games that I want 4K and good picture quality over smoothness. There is no setting I found to disable G-Sync in the monitor, which I never seen in a monitor before. Usually they all have a shut off for it. Anyways hope that helps you. This S3221QS has excellent colors, it's as good as a OLED cx lg. Now the ghosting, and response times are bad like real bad, but I bought it specifically for the color, VA panel, and 4K 10 bit 60hz so I wasn't expecting it to be as good as the G7 in ghosting, and response.