GTA:O is not free.

You pay for it when you buy GTA V.

Calling it free because it is included it like calling Unreal Tournamnet 2004 Multiplayer free because you get it included with Unreal Tournament 2004.

I wonder if GTA VI will actually be a finished game? It felt very weird playing through GTA V and encountering mechanics that went nowhere. I’ve zero interest in multi-player GTA.