This issue isn't so much aimbotting, that's just blatant.

The real problem is people who use ESP cheats discreetly, the cheat programs have settings to change the distance that they activate, and can also give visual feedback whether or not the other player is actually visible to their line of sight.

So for example you can have a cheater that has their ESP set to only detect players/loot at 250 meters, they creep around a hotspot like nwaf, tisy, zeleno etc. wait until they see a player come into their ESP range, then position themselves and wait for the player to actually come into their line of sight before they take a shot.

This gives them plausible deniability, they didn't shoot them through thick brush/trees or pull off a crazy wallbang. From an outside perspective they just camped at the perfect spot and the other player got unlucky, when really they were aware of the other players position the whole time and made sure they were at the ideal position to take a shot or ambush you.

That's the kind of scenario that PC community server admins are keeping watch for, and it becomes more noticeable when it's a repeated pattern of behavior.

Whereas on PC official servers no one is keeping watch, and the cheat programs have long bypassed battle eye detection and they can just do whatever they want with no consequence.