>>42570875
My assumption was that those images were the AVC from itunes or netflix and he was comparing it to Amazon.

Here are some images to compare.
https://slow.pics/c/EXSvNtR1

AVC reference is the iTunes rip from YayPonies, HEVC is from the torrent.

To me neither are amazing, but there is a lot more blocking in the Amazon HEVC file.
Look at the gradients in the red cloud.
Not impressed desu, the HEVC might just be a re-encode of the AVC.