DXo vs stacking

i was curious to see how PL noise reduction would perform against median pile stacking in Affinity.
Here is the result with m43 12800 pictures, nothing applied to the pictures except resizing. Default settings for HQ, prime and DP. 14 pictures handheld.

Conclusion : Affinity modifies luminosity (do you know why ?), there is more detail in the pic, but in terms of chromatic noise PL prime and DP are doing very slightly better. If i boost shadows on the tiff generated by Affinity i have more noise in the shadows than prime and DP.