Sure does. The story in Kenshi is rich and immersive. It includes different factions, characters with their own motives, and a world full of challenges and mysteries to uncover.
Perhaps the mask is just a fashion choice or it might be related to a specific story or event in the BT21 storyline that gives a reason for Mang to wear it.
There were several reasons why Yang Liping always wore a hat. First of all, she was a Bai woman. Wearing a hat might be a custom in her hometown. The hat was also a part of the Bai women's clothing, which helped to show her ethnic characteristics and stage effects. Secondly, Yang Liping had been practicing dancing for a long time. In order to present the perfect stage effect, she often practiced repeatedly, causing veins and wrinkles to appear on her face. In order to cover these flaws, she chose to wear a hat. Lastly, Yang Liping also had her own personal preferences. She liked to wear ethnic clothing, and hats were one of her personal habits. In general, wearing a hat was Yang Liping's choice to show her ethnic characteristics, cover her facial flaws, and satisfy her personal preferences.
Well, it could be for aesthetical reasons. In a lot of fanfiction, authors like to play with the appearance of characters to make them more unique or to fit a certain theme. The corset might be part of a new look for Fem Bilbo that sets her apart from the traditional Bilbo we know.
Clara might wear gloves to protect her hands, or it could be a clue related to a mystery in the story. Maybe they are a gift from someone important to her.