I’ve been waiting for this to go on sale before I give it a go in vorpX.
It’s not officially supported, but is said to run on the same engine as The Hunter: Call of the Wild, which is supported. This means a copied profile might work. In fact someone has already put one on the cloud claiming G3D.
If you’ve tried Call of the Wild in G3D, you’ll know it has a couple issues with grass, shadows, and scopes not looking quite right. Perhaps these might carry over to GZero too. (I’ve wondered if the grass might be fixable with the authoring tool)
The Z3D option is still a good option, and currently how I enjoy Call of the Wild. It’s very likely it will work just as well in GZero.
Also note that it wont have DirectVR, so you might have to experiment a bit to find good FOV and headtracking values.