Nobody does that and it's not possible due to GPU latency.
Eyeballs rotate very fast, up to 1000°/s. Fovea has just under 1° of high resolution. You gonna need to render 1000 FPS with 1 frame of latency to catch up.
GPUs can't do that. They evolved for decades optimizing for throughput at 60Hz, not latency at 1000Hz.