Foliage has a Shadow noise/grain - How to fix it?

The shadows are sharp, its just the angle mixed with the exposure and a lot of meshes i guess.

Ty for your awnser. In your opinion, what is the best for an In-Camera-VFX project? I dont want this “noise” in a LED wall making my backgrounds feel stupid. =z

Maybe use 4.27? Maybe disable RT completely from the project and adjust the settings?