GNU/Linux Debian Bookworm Installing NVIDIA GeForce Rtx 4060/4070 Laptop Driver Guide
How to Install NVIDIA GeForce Rtx 4060/4070 Laptop Graphics Driver on Debian Bookworm 12 GNU/Linux desktops – Step by step Tutorials.
The NVIDIA GeForce Rtx 4060/4070 Laptop Driver Debian Bookworm Setup is a breeze, requiring just a few straightforward shell commands to complete.
Moreover, following the NVIDIA Recommendations is better to use the tested NVIDIA Linux Graphics Driver from the Debian Repository.
Then with the nvidia-settings Tool you can configure Brightness, Gamma, XVideo attributes, Temperature, and OpenGL.
Especially relevant, prior to the Driver Setup you may consult:

GNU/Linux Debian 12 GeForce Rtx 4060/4070 Laptop Driver Installation Guide