Is thin fog impossible?

See image attached, if i make the density any number less than the one here, the fog just turns off, but it’s still far too thick, What do I do? or can blender just not do thin fog anymore?

You can make the colour a darker shade (first colour input of the volume shader)

What’s about the size of your objects/scene ? You have a clipping end of ~1000m… but i guess this landscape is bigger ? So you scale may be inproper ??