Raytraced reflections of reflective materials - massive noise?

Surely I would have to see SOME difference with some of the commands. But there is literally none. I don’t think it’s working…
Which command has an obvious visual difference? ¸
For example there is r.NGX.DLSS.Sharpness. -1 or 1 makes zero difference…

Or setting screen percentage to 50 and disabling dlss. No difference.

Are there some extra steps I need to make sure are enabled somewhere?

r.NGX.Enable=1
r.NGX.DLSS.Enable=1

I have a 3080.

Not sure what is the issue here.