Amazon.com Inc. AMZN 2.21% employees in Alabama voted not to unionize, handing the tech giant a victory in its biggest battle yet against labor-organizing efforts that fueled national debate over working conditions at one of…

When Victoria Vial’s Miami middle school shut down last spring and her classes went online, it felt like the beginning of an adventure. “I was in my pajamas, sitting in my comfy chair,” the 13-year-old…