Maybe the use of the term "digital processing" here is not the best description because except for analog hearing aids, all modern hearing aids use digital processing, so there's really not more or less digital processing. But the More (and many latest hearing aid brand/models) now employ AI (artificial intelligence) to further process sound, especially on the noise handling aspect, much more effectively.
Many people find the AI technology added to the newer hearing aids very beneficial to them, specifically in noisy situations. But nevertheless, there are still a few who said that they find the More slightly better than the OPN in noise, but only incrementally better and it's not a wow factor to them. So in that sense, I agree with
@e1405 that it's a very subjective opinion and on individual can really say that the More will be better than the OPN for the poster except the poster to try out for himself. But for sure, like
@e1405 shares, many do find that the More is better for them in noisy situation compared to the OPN.