Just came the other way today.. The touristy areas of SIN are very quiet, the local areas, not as quiet. Driver on the way to the airport earlier this afternoon was wanting to give me his CV, apparently lot of struggling taxi/grab/transfer car drivers at the moment. He mentioned that some taxi drivers not working, as they can't cover the daily rental. Hope it picks up soon.
I can't say I'd have no hesitation in continuing travel plans, as I live in the city, but you are right it is very clean, lots of places to sanitise your hands, an acutely aware population. . I haven't been worried, it really is life pretty close to normal.
And if you find yourself in a crowd and a bit worried about catching something, just cough loudly for 10 seconds, that should clear everyone
(joking!!).