Display broken after installing nvidia-open

I have a Fedora 41 KDE installation that I’m trying to get set up to use VR. I was advised by the Envision community to use the nvidia-open drivers rather than the proprietary ones, so I followed NVIDIA’s instructions for how to do that. However, now I’m stuck at 1024x768 resolution. There are no other options in Display Configuration. I have added nvidia.drm-modeset=1 to my grub configuration and regenerated grub, but that caused a nearly complete graphics failure - after boot, I got a black screen with just a cursor instead of the login screen. Even after removing that entry from grub by editing the grub entry before boot, I can’t get back to a workable state. How can I fix this situation?

You may well have more success with the rpmfusion builds of the nvidia drivers.
See Howto/NVIDIA - RPM Fusion - make sure you read the instructions of secure boot keys if you use secure boot.

You will need to uninstall all the nvidia drivers you got from nvidia.

The nvidia-open drivers are available from rpmfusion as well.

Given that all the propriatory code is in the huge firmware blob that is loaded into the Nvidia GPU, the driver is only open in the sense that the kernel interface to the firmware is open. It does not not have open firmware - none of the GPU do for that matter.

Remove the drivers installed directly from nvidia

Then configure the rpmfusion repos and install the drivers from there as guided by Howto/NVIDIA - RPM Fusion.
The instructions for the open drivers are under the NVENC/NVDEC link

I looked into removing the drivers I installed, but it seemed like it would be a somewhat arduous manual process. Since this was a young installation, I just wipes and am trying Kubuntu now.