@ChuckPa It looks like that worked. Even my original versions of those movies do hardware transcoding as expected. I actually installed the latest version of drivers through the Ubuntu PPA they list in their documentation. The latest version lists the OpenCL drivers as Production on everything except Elkhart Lake. Level Zero is still Pre-release.
sudo add-apt-repository ppa:intel-opencl/intel-opencl
sudo apt update
sudo apt install libze-intel-gpu libigdgmm11 libigc intel-opencl-icd
Here are my logs from the successful hw transcode after installing the drivers:
