For those who want to keep Geforce Experience settings after a DDU run. (Patreon)

 I have an unreleased version of DDU that seems to fix the issue when  unticking "remove GFE". At least, it work as expected on my end and all  settings seems to be intact.(restarting GFe and / or the computer after  the driver is installed *may* be required for things to show up in GFe)
I installed the driver via GFe when testing and I have taken the  "Express" option. A custom and ticking the box for clean install will  probably remove everything.
Here is the link for you guys who want to give me feedback and need that function.  DDU_GFE_FIX