Pimax 5K XR OLED VR Virtual Reality Headset with Wide 200°FOV, Dual 2560x1440p OLED Panels & 6 DOF Tracking, 1-Year Warranty, [Headset Only] : Video Games
Reducing FOV for performance, +40-100% fps, playable at 36fps without scaling with mid end card and quest 2 via link, does not really reduce FOV on device - Hardware & Performance -
Comparison of virtual reality headsets - Wikipedia