The official Rockstar downloads page related to GTA VI includes free artwork, screenshots, trailers, and wallpapers

https://touch-wiki.win/index.php/GTA_VI_for_free:_najwa%C5%BCniejsze_oficjalne_fakty_o_dost%C4%99pno%C5%9Bci_gry_77990

The official Rockstar downloads page related to GTA VI includes free artwork, screenshots, trailers, and wallpapers, but not a gta vi free download for the full game.