While naturally a lot of the focus for a GPU vendor is on their latest and greatest, NVIDIA do still support many of their older GPUs on Linux.
This month they put out the 340.108 driver, which supports some of their classics like the GeForce 9800 and GeForce 8800 GTX plus many older.
It includes updates to the nvidia-drm kernel module to ensure it's compatible with newer Linux Kernel versions, the bug report script was updated to search the systemd journal for gdm-x-session logs, multiple bugs were fixed when building the NVIDIA kernel module with different Linux Kernel versions, a bug that could prevent nvidia-xconfig from disabling the X Composite extension on version 1.20 of the X.org X server was fixed, plus multiple other improvements to their nvidia-installer for different languages and compatibility with more distributions.
The GeForce 8 series is around 13 years old, and the GeForce 9 series is also around 11 years old so it's actually somewhat amazing NVIDIA support it at all with compatibility updates like this.
You can find it here on the NVIDIA website.