Is 240hz worth it?

A 240hz monitor is worth it

gtx 1660 super ryzen 5 3600 [if it brings more fps ryzen 5 5600x write if it is worth the ryzen 5 5600x with 1660super]

I will play games like Fortnite / Valorant / cod warzone / cod coldwar / pubg

Not worth it because the 1660 Super just doesn't have enough power for 240 Hz.

It only creates 144 Hz.

Not worth it unless you're just playing CSGO

With a 1660S I would rather go towards 144hz, otherwise it's not worth it.

In a nutshell no, even 144hz would be questionable depending on the game, whether that works