Steam Controller Doesn't work

Platform, device version and operating system:
Windows 10, Steam

What you were expecting to happen, and what actually happened:
I expect the controller to work, it does not.

How often does this happen? When did it begin happening?
100% of the time

Steps to make it happen again
Try to use a steam controller

I have tried many options and configs, nothing makes the controller work other than configs that map buttons to mouse movements which are apparently against ToS.