I had to google foveated driving logic: It means tracking the user’s eye movements and only rendering the most central area to the eye in high-definition.
Source: https://www.roadtovr.com/google-shares-new-research-foveated...
Source: https://www.roadtovr.com/google-shares-new-research-foveated...
(the one you linked came up first for me too when searching around, took a little more digging to find the original article).
Technically though the fov is refering to fovea, not field of view.