Make sure you are on the latest driver. Specifically for Nvidia I recommend using the Studio driver for creative work and not the game-ready driver.
Could you specify what „flicker“ means? Does it draw a white screen in between frames, that kind of flicker? Or something like two elements at the exact same position flickering? That is called z-fighting and is normal.
The flickering I mean is the whole window of scene view only is flickering color black. like obstructed by black>then viewable again> repeat. it happens fast like half a second or milliseconds which is kind of annoying in the eyes too.
and yes I am using the game ready driver, I will try that recommendation of yours. Thank you again.