Quick guide howto uninstall NVIDIA Drivers on Fedora 34/33 and enable Nouveau drivers. This guide mainly exist if something goes wrong with the installation or some other reason you want to uninstall your NVIDIA drivers. I assume here that you have used https://www.if-not-true-then-false.com/2015/fedora-nvidia-guide/ guide to install your NVIDIA drivers. This whole process is good to run on runlevel 3. Check full commands from: https://www.if-not-true-then-false.com/2015/fedora-nvidia-guide/3/