https://www.sciencedaily.com/releases/2020/05/200505093116.htm

The unique, in-person survey reached 643 workers with Uber, Lyft, Doordash, GrubHub, Instacart, and Shipt early this year. When the shelter-in-place order took effect, researchers developed an additional two-week, online survey to capture the effects of the pandemic on app-based workers -- a growing population that enjoys little job security and few employment rights.

The baseline survey reveals a workforce that is 56% immigrant, mostly male, and that struggles to make ends meet, with many relying on public assistance despite working an average of 40 hours per week. Since the pandemic, the online survey revealed, more than half have lost 75-100% of their income. The findings were published in a report titled, "On-demand and on-the-edge: Ride-hailing and Delivery Workers in San Francisco."