HONG KONG—Elizabeth Liu broke down at the dinner table one evening in late March. She had just returned from the daily COVID-19 test when her family could leave their 10th-floor Shanghai apartment.
It was then that Mrs. Liu realized the mental toll of being down China’s zero-covid policies had become unbearable. This was also when she and her Singaporean husband had agreed that by the end of the year, they would leave the town where they met and which is the only home of their four children—ages two to 12. know.