Ober the past decade or so ot has become the fashion in certain circles to limit the definition of Kiddush hashem.
Although Ujm’s definition is certainly correct, it is only partly so
For example: Rambam Gezeila 11:3 Where he says One may not return a lost item of a Goy’s unless returned to make a Kiddush Hashem, so that Goyim praise Jews as honest people (rough translation)
Clearly having goyim viewing Jews as good/honest people is a Kiddush Hashem