[lifthrasiir]

> Makes me wonder where this myth of "good Korean internet" even came from if everything ends up so bandwidth constrained.

It is not a myth! A decade ago, though. I would still consider it is "good" in terms of objective metrics, but other countries have since caught up.

> Is it because all the customers and services are in the same city so it appears low latency?

No, because it would only apply to a quarter of the entire population of South Korea if it were true.