When it comes to character ascension, Mondstadt and Liyue’s local specialties can often pose a problem to new characters. That much was seen during the release of Inazuma, as players hadn’t had the opportunity to collect the specialties before the release of new characters.
Nonetheless, though collecting from the open world is more cost-efficient, there is a way to slightly increase local specialty supply during a shortage. In each nation, many of the local specialties can be bought from people like Flora for Mondstadt plants, and Shitou for Liyue ores.