Nobara Driver Manager now comes with a command line utility to quickly manage your Nvidia Driver installation, or to fix your drivers if you're stuck without a graphical session.
nobara-driver-cli
Typing this will let you know what your options are for managing your drivers. Currently only the Nvidia driver is supported.
nobara-driver-cli nvidia production
nvidia-gpu-firmware which is part of linux-firmware.nobara-driver-cli nvidia uninstall