The game is so realistic looking that the lead dev reissued footage showing that it is actually running inside Unreal Engine Editor, as many sceptics thought it was real video footage that had been filtered.
The realism is not only due to the graphics quality, but also that the point of view shown is that of a body cam, with the gun wavering and faces pixelated.
It is still in development though and only expected to have a release sometime in 2024.
Another demo at https://youtu.be/1_5s4dGmgr8 about the Cliffwood Village is also absolutely stunning realism.