Check

https://gallica.bnf.fr/ark:/12148/bpt6k930961s.image

as Thomas Hemmann pointed out you will find Ney's comment about the Saxons, very negative - already in September, as well on the other hand reports from Bavarian and Württemberg officers who are disgusted how the French treated their German allies and how bad French morale was as well.

I realized reading this volume how devastating the checks and defeats like Katzbach or Dennewitz were, they had a big impact on not only on the German units, but also on the French.