The reason why is due to Indonesia's government requiring services like Steam, Epic Games Store, and PayPal to register with a database that gives the Indonesian government the ability to access information about specific users or outright ban and remove content the government declares as "disturbing public order."
I first learned about this due to some Indonesian vtubers I follow mentioning this is going to have an impact on their streaming schedules, as they won't be able to access the storefronts to purchase new games ands whatnot.