Hi @AlterWanderer,
I have checked engine source code for 5.4 and the links appear to go to a plugin which is check for existance and it segmented indirect links to pick up the binary.
If you slow down and step the video they are inputing into an extra front panel allocated to Cyberpunk game not actually Unreal 5
See the Product download site
DLSS - Download and Get Started | NVIDIA Developer