The crew are required to wear face masks, and they did a lot of extra cleaning. They used medical-grade cleaning supplies, and were continually cleaning handrails, staterooms, and dining rooms. The crew also asked passengers to wash their hands before entering the dining areas. They did a terrific job; the Majestic Princess was immaculate.
Also, Princess Cruise Lines has touchless systems in place, where they give you a medallion to wear to unlock your cabin, as well as pay for shore excursions and all other items purchased on the ship.
How was dining on the ship?
Buffets are handled differently than before the pandemic. You still have that huge assortment of food, but the crew serves the food as opposed to you serving yourself. The food selection was excellent; I gained 6 pounds.