Inconsistent. Updates to VAC frequently lead to "ban waves" that catch users of these loaders. Valve Anti-Cheat (VAC) System - Steam Support
Although advertised as having a "VAC Bypass," Valve's Anti-Cheat (VAC) systems—including the newer VAC Live —are designed to detect signature changes and suspicious playstyles. Valve Anti-Cheat (VAC) System bans are permanent and non-negotiable. CheaterNinja Loader | CSGO Cheat Loader VAC B...
Using such software is a direct violation of Valve's Steam Subscriber Agreement, leading to permanent account restrictions and loss of access to skins or items. Inconsistent