I had no luck with the G3D mode, which has shadows disabled unfortunately, but Z-Normal in this title is excellent. Like a number of recent game-engines I found that pushing the near <> far slider all the way to FAR and then setting the amount of depth you want works very well.
It’s also (after about a hour of play) very undemanding, running easily at max quality and 4K at 60hz, even with a little super sampling (110% or 120%) in-game settings.