Should you look at the opponent or the crosshairs when aiming at Fortnite?
Ähhhm. You might want to aim at the opponent and then look for it
First sight the body of the virtual graphic opponent, then navigate the crosshair to that point.
The faster, more concurrent these actions can be performed, the better your eye-hand coordination will be.
Almost all daily activities require eye-hand coordination, which is why it is so important to develop them as well as possible.
Eye-hand coordination
https://www.cognifit.com/de/wissenschaft/kognitive-fahigkeiten/hand-augen-koordination
Here is an example from my Real Life: (once upon a time long ago…)
First PC: Windows 95, Microsoft mouse (still with ball), 15 "monitor.
Mannno! (Where is the mouse pointer again?) I constantly hovered the mouse over the target icon, and even put grandma's duster over my hand, because instead of sighting the target with my eyes (icon), always looked at my hand first, the mouse more like a hand brush, and had set too fast.
Today I'm a wrist mouse mover, and she's "technically" turned into a part of my body, my palm / fingertips.