Does historical research reflect the outlook and personality of the historian?

Absolutely any person is subject to their own perception of the world. Historians are no exception in this respect. But they quite often seem to be objective, although the point is, rather, in the simplicity of the presentation of the material and logical arguments. For example, Nikolai Karamzin wrote his historical works to please the Romanovs’ house, and Boris Akunin pursues exclusively commercial goals, which is also reflected in the quality of the material he offers. All these are properties of the characters of these historians.