GNU/Linux Mint 21 Installing NVIDIA GeForce RTX 4070/4070Ti Driver Guide
You are Welcome! The Tutorial shows you Step-by-Step How to Install the Latest NVIDIA GeForce RTX 4070/4070Ti Graphics and GPU Driver in Mint 21.x Vanessa LTS GNU/Linux Desktop.
The NVIDIA GeForce RTX 4070/4070Ti Driver Linux Mint 21 Setup is Simple and involves only the Execution of few Basic Shell Commands.
Moreover, following the NVIDIA Recommendations is better to use the tested NVIDIA Linux Graphics Driver from the Ubuntu 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:
1. Terminal Getting-Started Guide
How to Quick-Start with Command Line on Linux Mint:Console Linux Mint QuickStart Guide