Please note that as Nobara is a forward-moving, gaming-focused distribution, it is required that if you have an Nvidia GPU, it must be supported by Nvidia open driver version 565.77 or newer for compatibility with the latest Wayland, VKD3D and DXVK updates, OBS, Gamescope, and Vulkan. Older driver versions do not have the functionality and vulkan extensions that are required for these and will have performance and rendering issues, or may not work at all. For details please see:
(1) https://github.com/Plagman/gamescope/issues/151
https://www.nvidia.com/download/driverResults.aspx/187834/en/
(2) https://github.com/nowrep/obs-vkcapture#known-issues
https://www.nvidia.com/download/driverResults.aspx/187826/en-us/
(3) https://github.com/doitsujin/dxvk/wiki/Driver-support
(4) https://github.com/HansKristian-Work/vkd3d-proton#nvidia
Nvidia switched to defaulting to the open source driver module in driver 560. As of 565.77 we've also made the same switch. The open-source Nvidia driver does not support pascal (10 series) and older because it requires GSP firmware, which those cards are not capable of.
The lowest supported chips are the GTX 1630 and MX 450 (mobile only):
https://en.wikipedia.org/wiki/Turing_(microarchitecture).
Anything before Turing is not supported.
If you want to use an older card that is still covered by the proprietary driver (NOT open source) and works with wayland you can do the following, just note that it is not officially supported moving forward:
# sed -i -e 's/kernel-open$/kernel/g' /etc/nvidia/kernel.conf
# akmods --rebuild
# reboot
It should be additionally noted, Nobara 41 and higher do not ship with X11 packages and also does not support X11 moving forward.