I does support different color profiles but no hardware calibration.
The text is sharp at a reasonable distance of 70 cm.
It has only 600 nits peak
It has only 56 edge led dimming zones. The M1 pro has not 10.000 (this is the amount of led's, 4 mini leds => 1 dimming zone

), it has around 2600 dimming zones. And it has still blooming.
The overall experience is much better than on the tiny m1 pro display. You will never watch all day long hdr movies. So your points about the hdr are irrelevant. I have C1 48" oled for this. It looks much better than this macbook screen.