There were the two-hour, unpaid waits outside supermarkets when San Francisco first started to lock down, on top of the heavy shopping bags that had to be lugged up countless flights of stairs. “I started to juggle three apps to make ends meet,” said Okawa, who recently reduced her work hours after receiving unemployment benefits. Okawa is one of an estimated 1.5 million so-called gig workers who make a living driving people to airports, picking out produce at grocery stores or providing childcare for working parents.