Find the nvidia driver version

$ sudo apt-get purge nvidia-*

$ sudo apt list  | grep nvidia-driver

...

nvidia-driver-470-server/focal-updates,focal-security 470.82.01-0ubuntu0.20.04.1 amd64

nvidia-driver-470/focal-updates,focal-security 470.86-0ubuntu0.20.04.1 amd64

nvidia-driver-495/focal-updates,focal-security 495.44-0ubuntu0.20.04.1 amd64

...

Choose the version what you want

Install nvidia driver

$ sudo apt install nvidia-driver-495

Check GPU working

$ apt-get install mesa-utils

$ glxgears

then it shows 3d gears in the screen

nvidia 1660Ti

(23.02.03 current)

525.85.05 , 2023.01.19 release can support 1660Ti https://www.nvidia.com/Download/driverResults.aspx/198554/en-us/

apt newest version (23.02.03) nvidia-driver-525/jammy-updates,jammy-security 525.78.01-0ubuntu0.22.04.1 amd64