You're referring to the High Efficiency Video Coding (HEVC) standard for video compression!
Three weeks after the honeymoon, he got the delivery link. Inside was a folder labeled Final_Cut_Master_4K.mkv . It was 47 GB.
The Honeymoon Effect in Health-Economic Value Calculations (HEVC): A Critical Analysis of End-of-Life Dynamics
: If you are watching on platforms like Amazon Prime Video, the service often automatically serves an HEVC stream to compatible 4K devices to save bandwidth.