Simply put, the SERP is not set up for free korean number for whatsapp exploration. It is not designed to dive deeper into a topic. The Knowledge Graph also allows mostly horizontal exploration. It allows you to move from one knowledge resource to another, but not necessarily deep within a resource.
Let's take the case of a celebrity, in this case Oprah Winfrey:
Google, through the Knowledge Panel, does two things (basically):
Provides basic/contextual information (via Overview, News, and Education tabs).
Connects the user to other resources related to the entity (via the Books and Movies & TV tabs).
Compare this to Wikipedia's approach to the same entity:
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In this case, rather than simply being connected to the assets tied to the entity, we dive much deeper into the various facets that make up who Oprah is, from her childhood to her religious beliefs, to her influence and impact on society and pop culture.
This is not to say that Google is incapable of segmenting a topic so that it can be easily explored through the SERP.
Google did a great job of this in the "COVID" SERP:
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In this case, Google segments the overall topic through a format that allows the user to easily explore the various components of the larger topic (at least at the initial level of exploration).
