Does Catalina require Intel iGPU for hardware decode?

After the recent upgrade of my rig with Haswell Refresh Xeon (no iGPU, rx570) to Success' href='/2020/12/install-macos-mojave-on-supported-pc.html'>Mojave I realized that iGPU is a very crucial piece of MacOS 10.14 architecture. I don’t have Vega to try iMacPro 1,1. Any feedback is appreciated.

Cheers!

Author: @stralex7