Have you tried other device(laptop/PS5...) connecting to the monitors but still have the color banding issue?
Are the 3 photos all from XG27UQ or all VG278Q?
May I have the youtube link of the second photo?
Could you please take photos of the 3 monitors(VG278Q, XG27UQ, HP xi 25" IPS monitor) with the second photo(the same cartoon picture)?
I'm afraid the display issue is hard to see via screenshots.
Could you please help to take a photo of the color binding issue on the pc and the PS5?
Thank you so much.
I'm afraid I cannot find the information about the serial number of your VG278QR.
Could you please help to take a photo of the sticker label with the serial number and share me the photo(via google drive link) in PM?