So I bought the mg278q free sync monitor.
Before this I had the benq xl2411z never had issues,games was perfect on the benq but I wanted more from a monitor so I decided to choose the Asus.
It was about 100 euros less comparable to benq xl2730z.

The monitor is great ,big and solid. the build quality is excellent, no dead pixel, no problems at all.
But I have a problem setting up the monitor.
If anyone can suggest best osd settings for free sync and a proper calibration to take the most of the monitor.