Layoffs are piling up, heightening worker anxiety. Here are some of the biggest recent job cuts

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2. Yes, because of the WARN Act

https://en.wikipedia.org/wiki/Worker_Adjustment_and_Retraining_Notification_Act_of_1988

The Worker Adjustment and Retraining Notification Act of 1988 (the "WARN Act" ) is a U.S. labor law that protects employees, their families, and communities by requiring most employers with 100 or more employees to provide notification 60 calendar days in advance of planned closings and mass layoffs of employees.[1] In 2001, there were about 2,000 mass layoffs and plant closures that were subject to WARN advance notice requirements and that affected about 660,000 employees.[2]

Employees entitled to notice under the WARN Act include managers and supervisors, hourly wage, and salaried workers. The WARN Act requires that notice also be given to employees' representatives (e.g., a labor union), the local chief elected official (e.g. the mayor), and the state dislocated worker unit. The advance notice is intended to give workers and their families transition time to adjust to the prospective loss of employment, to seek and to obtain other employment, and if necessary, to enter skill training or retraining programs that would allow these workers to successfully compete in the job market.[3]