GTA VI has been officially described as a paid release

https://wiki-tonic.win/index.php/GTA_VI_for_free:_czy_oficjalne_pobranie_za_darmo_zosta%C5%82o_og%C5%82oszone%3F

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.