This is most definitely fake and misleading. There is no way the narrated gameplay shown in the video is a result of an autonomous agent. The capabilities of proposed system (of which no evaluation was shown) do not fit the capabilities of the agent shown in the gameplay. For example, Lara comments that "wolf tracks are backwards" but there is no way the agent as described in the video would be capable to come at such conclusion.
Go and look into the comment section, which is full of naive people believing this with comment "actually, AI is now very advanced". Content like this skews public perception of what is and is not possible and is, imho, harmful.