Can't install my Nvidia GT 750M

Hi. I'm new to Linux, and have experimented with difference versions like pop os, Zorin os, Bazzite. I decided to stick with Cachy OS. It works fine. Unfortunately I can't get my nvidia to work. I havr used Gemini and Chatgpt to help me, but none of the attempts works. Do anyone of you know, how I can get catchy os to recognise my nvidia. It only recognise my integrated Intel graphic card. I know it's an old nvidia card