I looked for Your GeForce 210 Card and it seems that it would need the Driver 340 which is a pretty olde one and not available in the Repo's. But there is a PPA what offers the Driver for newer Kernels.
So, I would suggest the following Way:
- Install the 6.8 Kernel from the Repos
- Add the PPA to install the 340 Driver for Your Card
So, first install the 6.8 Kernel with the Command:
sudo apt install linux-headers-6.8.0-124-generic linux-image-6.8.0-124-generic linux-modules-6.8.0-124-generic linux-modules-extra-6.8.0-124-generic
When installed, reboot and on the GRUB Menu choose ''Additional Options'' and there choose this Kernel (without the Recovery Option). When booted and loged in, type in Terminal uname -r to check that You really in this Kernel. To set that Kernel as default, follow these Instructions:
Then add the PPA with
sudo add-apt-repository ppa:kelebek333/nvidia-test
and then make a sudo apt update to refresh the Sources. To install the Driver type
sudo apt install nvidia-graphics-drivers-legacy-340xx
But when You are find with the Nouveau Driver, of Course, You don't have to do that all. Then ignore it.