Is there a lore reason on why Firefly looks so different in his(00)

Is there a lore reason on why Firefly looks so different in his(00)

Image gallery: Firefly Leaks

Is there a lore reason on why Firefly looks so different in his (2.3 Leak) Firefly Farm Guide / Low Res Eidolons : FireflyMains Firefly: Leaks & Kit Honkai: Star Rail - Level Push