Only have a 60hz monitor... Should I cap my game's framerate to 60 fps?

I'm in the process of setting up New World's graphics settings, and notice that the game has an fps cap option.  I only have a 60hz monitor unfortunately, so would it be right to cap my fps to 60?  I don't really understand it too well, but from what I've been told a 60hz monitor can only show up to 60 fps, so I'm guessing it would be pointless leaving my fps cap on 'unlimited'?

Unless of course there's a reason why I shouldn't cap it.

Thanks.