The fingering we use is taken directly from: https://beam.kisarazu.ac.jp/~saito/research/PianoFingeringDa...

From their whitepaper: "Fingerings in the dataset were provided by experienced pianists who graduated from a music college or who had played the piano for more than twenty years. The pianists were asked to choose pieces that they could play and provided the fingering that they had actually used for the performance."

Very interesting. The fingering for the Chopin piece is just bizarre to me, but I'm not going to argue with data.

Fingering isn't a fixed "right" or "wrong" matter. Every pianist's hands are different, so fingerings may vary from person to person.