The difference with Singapore probably has more to do with how (a) face mask wearing was and still is compulsory for everyone at all times outside of their home

The difference with Singapore probably has more to do with how (a) face mask wearing was and still is compulsory for everyone at all times outside of their homes (the fine for not doing so is the equivalent of $210 USD), and (b) every single government-run community center in the city had free reusable face masks available for months for anyone who didn't already have one.