You're mixing up Hong Kong and Singapore; Singapore is the one with the massive sovereign wealth fund and subsidized housing.
I lived there, Mister Confidently-Incorrect!
It sounds like you're saw Singapore Fun Facts once, and in your mind it permanently excluded any other place from having similar features.
* Like I said, Hong Kong does have a significant sovereign wealth fund that ranks in the top 10. [0]. It doesn't stop mattering just because Singapore runs a bigger one.
* Here's a article from 2021 with a nice stacked-graph showing 45% public housing [1], close to the half I mentioned.