Well, ARB by itself is a skillcheck on managing positioning, energy, timing, etc. Those concepts limit the damage cheaters do to mostly ESP.
And that’s not the case for GRB, the place we’re talking about. Speaking of GRB, meet WTCS, he has tons of videos of flagrant cheating.
https://youtube.com/@wtcheatshaming?si=E7OALaRHmOx491sr
i will never play that gamemode, it looks AWFUL XD