According to previous rumors, the game's first region, Mondstadt, is uncompleted and its currently available parts of the map only represent around 60% of the whole region.

Source: https://gamerant.com/genshin-impact-leak-future-map-expansions/

After all, she's known as the three-time winner of the Gliding Championship held in the City of Mondstadt.

Source: https://gamerant.com/genshin-impact-fan-liyue-skin-amber/

The patch did, however, introduce the playable version of Dehya and Mika, and celebrated the annual Windblume Festival in Mondstadt.

Source: https://screenrant.com/genshin-impact-3-6-livestream-date-time-banners/

The positive aspect is that she has a fantastic 4-star F2P (free-to-play) alternative: Barbara, from the Mondstadt region.

Source: https://screenrant.com/shenhe-best-team-comps-genshin-impact/

The recent live stream event for the upcoming update 3.5 confirmed the arrival of the famous Pyro claymore five-star Dehya and a Cryo user from Mondstadt named Mika.

Source: https://gamerant.com/genshin-impact-baizhu-kaveh-update-3-6/