In Blender 2.79 there was a simple Z distance or depth type fog. We only have to turn on in the world panel the Mist option and fine tune the parameters. Ee could see it in the 3d-view.
Is there an equivalent in 2.8? I'm looking for the simpliest (KISS) solution. Or do we have to use the volumetrics in the 3d-view? I guess that is more complex and time consuming solution.