Ah, okay, I'll have to see if it works.That appears to be a very open ended question in Linux. Many recommend using the command line, but there are also also many GUI options.
LACT came up in my searches. (Nor do I know if such an old GPU would be supported, it may rely on more contemporary means to manipulate GPUs)
My current Linux system has Intel Arc in it, so I have no direct experience overclocking Nvidia.