GNU/Linux CachyOS NVIDIA GeForce GTX 1660 SUPER Driver Installation Guide
How to Install NVIDIA GeForce GTX 1660 SUPER Graphics Driver on GNU/Linux CachyOS GNU/Linux desktop – Step by step Tutorial.
The NVIDIA GeForce GTX 1660 SUPER Driver CachyOS Setup is a breeze, requiring just a few straightforward Shell Commands to complete.
In summary, NVIDIA GPU Linux Drivers are essential for Linux users who wish to utilize NVIDIA GPUs for graphics-intensive tasks. Proper installation and maintenance of these drivers are crucial to ensure optimal performance and compatibility with Linux-based systems.
Finally, with the nvidia-settings Tool you can configure Brightness, Gamma, XVideo attributes, Temperature, and OpenGL.

1. Terminal QuickStart
How to QuickStart with Command Line on CachyOS Linux
2. Installing NVIDIA Driver
Then to Install NVIDIA GTX 1660 SUPER CachyOS Driver.
Simply play:sudo pacman -Syu nvidia nvidia-settings nvidia-utils
But for Ach Linux LTS LTS Kernel instead:sudo pacman -Syu nvidia-lts nvidia-settings nvidia-utils
Or with the DKMS Auto updating variant:sudo pacman -Syu nvidia-dkms nvidia-settings nvidia-utils
For further Insight see the Official Documentation. Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then see: How to Enable sudo