Apple ProRes is indeed missing from MacOS version of Unreal (LOL)
I tried to forcibly include it into game by adding “AppleProResMedia” into .build.cs, and the compiler says there’s no ProRes .dylib
Naturally if you go to the plugin location, /Users/Shared/Epic Games/UE_5.2/Engine/Plugins/Media/AppleProResMedia/Source/AppleProResMedia/Source/ThirdParty/ProResLib/lib - you will find a windows folder with the library compiled for Windows.
My first thought was to just disassemble it on Windows, and assemble back on Mac, but then I remembered that Unreal EULA specifically says not to disassemble anything.
If you refer to ProRes codec webpage it says that the codec is proprietary, and only licensed to certain pieces of software - which Unreal is one of.
Still, it is unclear why wouldn’t Apple ProRes be included as a .dylib for MacOS