No anti-cheat catches everything. For 13 or 14 years now, when decent AC measure become more prominent, people have made the same erroneous assumption that the AC can and should catch everything. It’s not possible and never has been so how this idea persists I’ll never know. When new cheats become available they must be found and added and any exploits must be gotten rid of within the AC system while also constantly monitoring for certain events.
In other words, AC is always going to be playing catch-up. You will see cheaters. They won’t last very long assuming the AC provider is actively doing their job but then those same people will get new accounts and cheat again with a newer version that hasn’t been added yet. This is how anti-cheat systems work for the most part outside of clients like ESEA that get VERY invasive and also very active. Which many people aren’t OK with having on their PC’s.