In fact, I don't use the proprietary driver but the one you can find on the rpm-fusion repo.
Regards.

F.P.

On a brief look, the rpm-fusion repo appears to exist to ship non-free software that Redhat declines to ship due to licencing/copyright issues.

The repo offers the non-free Nvidia proprietary driver. So you are most likely using Nvidia's proprietary driver without knowing it. This driver is the one that comes with the nvidia-settings and nvidia-smi applications.