i don t know if u play on steam in other games... the vac system doesn t mean you can t run cheats. it will be always possible run cheats with every kind of games.. server side or not.. the problem is not block cheats... u can t do that.. but u can caught everyone that is running a script in an exe file thx the vac.. and when u report an account to steam be sure that they will check it and if they find something u get banned by steam .
i played for diff months pubg and i saw tons of cheaters but when u report them they get banned after 1 hour. and u have not chanse to get back your steam account.. if u purchased 10 games and u get banned in 1 u loose everything.
in everycase a game like pubg works with a vac and a replay ...when u report someone because u got killed and u think he was cheating they check the vac and the reply of the kill so they are very smart to say if u were cheating or not.. anyway it s much better have a system like vac then nothing... what u say?