On June 24, 2020, Netflix released a special episode of “Lenox Hill.” With a pandemic still in its relative infancy, a doctor-focused doc series presented a 32-minute time capsule of Covid’s arrival in New York City. It’s far from the only show to document those frightening few weeks in its own way, but nearly three years later, “Lenox Hill” still feels like a definitive portrait of that moment in time.

“Lenox Hill” was both a perfect and an odd source for something so specific. On one hand, the show provided an intimate glimpse of life at Lenox Hill Hospital. Through an observational lens, directors/creators Ruthie Shatz and Adi Barash were able to present the highest-stakes environment as a day-to-day job in surgery wards and emergency triage centers. Yet one of the intriguing things about that original season is that it felt unmoored from time. The series wasn’t hyperfixated...