@hayhor The main thing is that, in Apex, hacks feel much worse than in other games. This is mainly because of the long TTK. For example: if it usually takes 5 seconds to down someone, any player being downed in 2.5 seconds will become suspicious. In other games, where it takes like 1 second to usually kill someone, players will hardly notice when they get down in 0.5 seconds.
Another thing, spectator mode is not an actual video stream, it is the game engine rebuilding the view, based on the data that comes from the server (probably at 20fps) which then is smoothed with interpolation. Spectator mode can go really wild when there's an issue. I've seen a Path downing people without even shooting at them and, just as i was about to report that player, I noticed his crosshair was way off as well and that he was moving a bit sideways as well. All this was because the camera rotation was updated 1 tick behind the other stuff.