On Friday, Walmart announced to employees that fully vaccinated workers would no longer be required to wear masks, effective immediately. They will also end their pandemic sick-pay program on March 31st. These new changes will only be followed where state or local rules don’t conflict. The company will also discontinue their daily health screenings before shifts except in California, New York, and Virginia.
See "Walmart puts an end to masks for vaccinated workers", Lauren McCarthy, The New York Times, February 14, 2022