Sorry, I’m not very familiar with the terms.
Do I also have headtracking and the full VR view in z3D mode? So not just a screen section or a virtual screen.
Do you use your own profile for STALKER Anomaly or the one from the cloud?
Z3D or G3D is just how 3d is achieved, head tracking is a separate thing and virtual screen or full 3D is sceen modes. Essentially you can have your head tracking and screen glued to face no matter what mode you choose but with Z3D there will be artifacts on objects close to you, while G3D will have issues with some lights only rendering for 1 eye and worse performance.