@buli, that means that the driver has been installed successfully and can be used for certain applications which can take advantage of better GPU performance. Try running 4K60 videos on a browser with and without a discrete graphics card and you would most likely see the difference.
@laamani, it might be the case where the drivers are installed but somehow fail to load up due to the fact that the kernel modules were not built. Could you please try the steps provided here https://discussion.fedoraproject.org/t/fedora-34-nvidia-kernel-module-missing-falling-back-to-nouveau/68831/5 and see if it works?
Also just like any other piece of software, akmod-nvidia might give you a hard time if it has not been installed correctly so I would suggest actively communicating issues and we’d certainly try to be of assistance. I do not work with RPM Fusion folks on this package but I do know how it works to be able to help.
Installing akmod-nvidia would automatically enable the command-line arguments that you specified of, on boot so I do not think that needs to be done explicitly. With recent releases, even PRIME configuration works just fine with Wayland so I doubt toggling Wayland would help. An RFE is in order, I think.