Purchasing public housing apartment: pay-ability vs affordability

I managed to secure a $332000 hdb public housing apartment. And I figured that if I have to take a loan on any part of that value, I can’t afford it, honestly. That said the monthly repayments to the bank for the principal and interest is not exactly unpayable. Sneaky how they don’t highlight that I’m gonna slog my ass off for the house for a very long time.