My coworkers in China confirm that people are gradually getting back to work, and I have no reason to doubt them.

The procedure seems quite interesting: Instead of lifting quarantine for everyone at once, the return to work is rolled out slowly (some %age of workers return the first day, some more the next day), so the situation can be monitored.

Apple has re-opened Apple stores and factories there, while shutting down Apple stores everywhere else. No matter how you feel about the PRC there's no reason to doubt Tim Cook.