Outdoor is the best place than to be indoor, as the bacterial and viral load count is less due to the natural UVC generated from the sun. I have conducted some tests with Air Quality team using scientific instruments and see the actual results with my own eyes.
Unfortunately HK government does not buy in scientific data; but they buy based on someone in China complaining Hong Kong people enjoying the beach time! Let's more people flood the mall, continue the chain of Covid transmission and see how these numbers ramp up and sustaining the dynamic zero covid!