Remove Shader grain or Increase number of grains ( on darkness )
The shadows look very grainy, some method of increasing the quality or number of grains ?
I’m using SSAO after rendering,
the shadow improves when the TV turns on, maybe because of the BLOOM pass.
Fully functional TV and video games.

only older people will know how to turn on the Atari

Some of that might be shadow acne…

You could adjust the value perhaps… or also make sure your camera near and far are set to like… .1 and 100 or so…