I think I have fallen behind in the latest tools to do this elegantly. I found a great page explaining the commands needed. I will paraphrase here for my own notes and in case the site goes away.
A handy command is: ubuntu-drivers. In this instance, we run ubuntu-drivers devices to see the driver options we have. From there, we can run sudo ubuntu-drivers autoinstall to install the recommended driver or sudo apt install nvidia-driver-460 to install a specific driver. Reboot. We have another command nvidia-smi that gives us good info about our Nvidia graphics card and the driver being used.