I have the free version of Da Vinci Resolve and don't have a problem editing H.265 even on my older 2013 MacBook Pro it will edit it, just drops a lot of frames without proxies. My new Mac Studio will edit it in full resolution. My Air 2S arrives Tuesday so I'll be able to test out the higher res footage beyond the 4K/60 of my MA2.At the moment with the free version of Davinci any .265 files are unusable after import.