Cant install nvidia drivers fedora32

when running command rpm-ostree install kmod-nvidia xorg-x11-drv-nvidia
i only have rpm-fusion installed

This is an unfortunate but common issue that should be resolved soon. In the mean time, can you try running:

$ sudo rpm-ostree update --install kmod-nvidia xorg-x11-drv-nvidia

Edit: Apparently those packages are have just been added so I suspect that you will have to wait for the next Silverblue update for this to work.

As a workaround, you may be able to install the packages by downloading the conflicting packages directly and overriding them in the base image:

$ sudo rpm-ostree override replace ./libglvnd*.rpm

Then try again with:

$ sudo rpm-ostree install akmod-nvidia ...