Let me help then. Mac: HEVC with alpha channel. PC: nope. Many other examples...Never mind the fact that a PC configured correctly would be less costly and perform better for this implementation. The OS API in Windows or any other OS for that matter give you full control of the interface. I've never understood the Artist brainwashing and attraction to the Apple platform. I've worked supporting Macs for 25+ years and the more I support them (30K macs) the less I understand it. Oh well, if everything worked perfectly I wouldn't have a job. ?
There are certain things built in c++ then incorporated into macOS as easy-to-use native core frameworks in Swift that make niche artistic software possible on macOS that simply isn't possible cost-effectively on Windows. Too many examples to list here.
I say this as a person who owns many computers of both operating systems, too.