Is hardware encoding only working to export progressive video ?

I,

I try somme worflow to use hardware en coding on macbook and pc.

I find that i can only use it when exporting to progressive video, is true ? my input is a field project

Ps in 14.6 build 22 'Adobe Media Encoder (Beta) Log.txt' log are more verbose but not seem to update if you launch encodes one after one (if you delete it it not making a new one)

regard,