Using a "Headless" iGPU
The video doesn't show how to run your Intel iGPU headless. If you do use an AMD or Nvidia card and don't plan on using the iGPU at all (i.e. no display connected) you can delete the whole Devices/Properties PciRoot (0x0)/Pci(0x2,0x0) section. WhateverGreen should then automatically configure it as a compute device. It can then do video encoding / decoding to speed up rendering. You will also need to change the BIOS and make the dGPU the primary video card for encoding / decoding to work. Running iGPU headless is the fastest way to render, especially if you are using an older Nvidia Kepler 700 series graphics card.