I tried with color calibration module, but I was not satisfied. Adobe DNG Converter gave a better color matrix than the one from Huawei. Adobe also compressed the files from 76 MB to around 25 MB.
Feel free to play around with the raw samples. JPEG files are SOOC.
Do you have the firmware update he mentions in a later post of his…link at the bottom of the one you provided…seems like he declared it corrected …at least for color??
I did the update on my P30-Pro and it does make a difference but I still find that RAW (dng) files from that phone require special corrective attention which I generally manage with a warming and saturation change using the ‘color correction’ module.