Can still possibly be healthcare. Even on a floor with 20+ patients, you only need one RN and one CNA on the floor (I’ve seen skeleton crews like that).

Those facilities didn’t even stock up on face masks before Covid, so believe me when I say they know how to run a tight budget.

Technically not healthcare, but close: Pharmacy. That being said, my sisters a nurse and she's frequently the only one for a ward during the nightshifts. In case of emergencies she'd need to call on staff from other wards.