Of course - it’s easy to find on Steam for those curious, so not a secret.
The potential issue here is being whitelisted by EAC - we have a choice to do that or not, so we COULD turn it off. And what we have to determine is whether a significant number of people would think this was an unfair advantage over them.
And yes, there are monitors that do simple reticles in the center of the frame, but it’s pretty easy to say those can’t be enhanced for a specific game, since they are in the firmware of the monitor and know nothing about the game they are running. If you were really dedicated I suppose you could just draw on your screen - I dont think we can disallow sharpies =).