Not to familiar with the Kunming bread situation anymore because I simply make my own bread, but as far as I know “good bread”, that is bread without a sweet flavour like all Chinese breads, is available at Igor’s bakery and it is sold as well at Salvadors/Mimosa.
The Wicker Basket shops as well sell a rather bland but not sweet loaf of bread.
A friend of mine gets quite good results himself with a bread making machine, like me, he buys his ingredients on line.
I don’t know about German bread but pumpernickel style bread is available online of the Jason brand which is not bad and at least not sweet.