GTA VI has been officially described as a paid release

https://wiki-planet.win/index.php/GTA_VI_for_free:_najwa%C5%BCniejsze_oficjalne_fakty_o_dost%C4%99pno%C5%9Bci_gry

GTA VI has been officially described as a paid release, so any gta vi free download claim for the full game would not match the verified Rockstar sources.