My experience… it is not only about ground textures. Also about weird lights (in this case in NY City) on buildings and weird white dots on the plane. I now am focussed on these things and the occur every GA flight on a window.
Further the ground texture is just so bad in comparisson to 2020.
I reinstalled the sim today and the sim seems to be a little bit more stable and i have a couple of fps increased (nothing in the community folder), but still dull blurry graphics and way less fps then msfs2020.
Personally i would like to play this with dx11 then 12 like msfs2020, because dx12 in 2020 also is rubbish on my gaming laptop