I can run it almost full eye candy with my 3080 12Gb (@34x14) with some mods and a few things turned down (motion blur can die in a fire). I don't know what my frames are but it's smooth and playable (and F'n beautiful).
Quick look before the meetings start~ I see a bunch of mod packages called City of Dreams on Nexus...
Ah: https://next.nexusmods.com/cyberpunk2077/collections/dfvt7o
Release Highlights
This version of the PhysX System Software provides Security updates for some included DLLs and the installer.
Updates the digital signature of the installed DLLs.
Includes the latest PhysX runtime builds to support all...
That's exactly what I was doing with mine- didn't seem to move a ton of air, but there was a noticeable drop in water temp (it was like adding another 140mm rad).
I used the 140mm version of that slim fan, it worked fine but couldn't go above about 50% max rpm without striking blade to frame. I figure the 120mm will be better, but know that it will move some air, but not a ton. But at least it was quiet.