A lot of my photos and videos shot from my Mavic 2 Zoom have lots of noise in them. I've researched and tried many differnet camera settings and still get grainy images. It's especially bad with trees and grass. Any suggestions or ideas as to why this might be?
My main camera settings are on auto and the style settings are:
Custom:

• +1 Sharpness
• 0 Contrast
• 0 Saturation
  

I usually shoot videos in 4K and export to 1080p and the footage is still very noisy. While some shots are taken in lower light, it still remains the same in well lit scenarios. The image below was taken of a sunset, but it was still pretty bright out.


Any help would be greatly appreciated! Thanks!



Sunset Example

I'd cut the sharpness to maybe -1. Apply denoise in post then sharpen up. My two cents.

It is common with DJI drones. Small sensor, lot's of details, some compression.
It is probably not only noise, but also artifacts you are seeing (grass is a good hint it might be artifacts because that has lots of details).
Also try to capture 1080p and see if it is still present.