Long-forgotten leaked characters for Genshin Impact have essentially been confirmed by developer HoYoverse, even if only subtly. The action RPG has been seeing several character leaks over the past few years and several rumored units like Dahlia and the prison girl from Fontaine have been left out of the game, implicating that the leaks were either fake or that their releases were indefinitely postponed. With all eyes on Natlan, characters from other regions have become more absent, even if players are getting Lan Yan in Genshin Impact 5.3.

https://screenrant.com/genshin-impact-confirmed-dahlia-prison-girl-leaks-op-ed/