I don’t think there is any need for a Dolby Vision or HDR grade to create colour that closely matches the prints. There was no Dolby Vision or HDR in 2001 or a decade from then.
I believe that 8bit SDR doesn’t quite capture what many theatrical prints deliver and certainly not what original camera negatives can. So you actually do need HDR, even if only maybe just a modest bit, to match film ideally. You also need wide gamut color, something beyond REC709 primaries (at least for some films, it depends, of course, if something is all dusty tan and gray, it won’t make a difference, if it has intense deep yellows, reds, etc. without going to wide gamut color you will clip away some of the original colors).
I understand, but I was thinking of 10 bit SDR, not 8-bit. I don’t have an HDR monitor or an HDR-capable TV, nor am I capable of buying one at this point. So, for me, 4K 10 bit SDR is the maximum image format I can watch at home. My monitor is 1920X1200 (16:10). I can watch 4K SDR, but not HDR.