Frustrated Amazon employees opened another front in their fight against the company’s return-to-office mandate. On Wednesday, 523 employees in the Amazon Web Services division sent its chief executive, Matt Garman, an open letter detailing their frustration with the new policy. “Our time working remotely during the height of the COVID-19 pandemic proved that we are effective, creative, and successful without being primarily in-person, and to take no lessons from that experience would be extremel...