Not really. Manchu Eight Banner army used gun, like Han Bannerman and Luying army. But fewer because most of Manchu Bannerman is cavalry, maybe they think use bow in horseback is better than gun.
And Xiangu, i think it is based on female troop of Taiping Rebels?
This chinese civ in WOL use modernized troops mostly, may be musket like (Banner Cav, xiangu, kansu brave, ...) may be used mostly, instead of some kind of archaic unit like: chukonu, manchu horse archer, ...
About the Female xiangu, i think this unit, along with Kansu Brave, is in the Qing muslim army.