The post you're referencing describes a pirated version of Grand Theft Auto V (version 1.0.505.2) repacked by
Downloading "repacks" from third-party sites carries high risks of malware, miners, or viruses The post you're referencing describes a pirated version
A v1.0.505.2 release will not include any of the content from the last several years of updates, including new vehicles, missions, or the technical improvements found in the modern GTA Wiki Title Updates No Online Access: including new vehicles
: CorePack was a prominent group that specialized in "repacking" games—taking official game files and using advanced compression algorithms to significantly reduce the download size. Compression Benefits The post you're referencing describes a pirated version
(GTA V) is a highly compressed version of the original game files. Version 1.0.505.2 corresponds to a specific build of the game that includes various Downloadable Content (DLC) updates released by Rockstar Games up to that point.