Not quite sure what you are saying. Seems you are first saying the issue...the problem..is limited to newer Silicon macs with hardware decoding enabled. The M1 is silicon..does it not have hardware decoding enabled? All-I is not listed by...
Makes sense regarding the file type issue. My desire was to start using Pro Res a bit but I will never bother with converting All-I so that's dead to me. I may get a standard model and buy a Pro controller on the side. I would not want to keep...
My 2 cents.... Don't try to match the Normal to the DLog. Normal is 8 bit and will 'break' if you try to color correct it very much. The DLog should have the appropriate LUT applied and color grading then applied to match the Normal. In FCP...