Display banding issues on shadows

HI, I have an XPS15 2020 with 4K screen.

There have been these weird banding in the shadows. Does anyone know how to solve this issue?

https://imgur.com/a/uTtXCiI

The first photo is a screenshot when watching a youtube video. The second photo shows that this also happens in the system apps like settings.

My HDR is off (when I turn it on the screen will turn orangey-pink)

I've tried to turn night light on/off, problem still persists

Thanks so much if anyone is able to share their experience.