the one time i visited NYC i naively tried to use a public toilet at a subway station. entered the stall -- faecal matter coating every surface. filthy is an understatement.
Cleaning the subway cars overall is a joke - they have people with mops at the terminus stations and they get 30secs to 2 minutes to mop the first and last cars before they go out again. All the cars in the middle just accumulate debris and stains until the train is taken out of service for regular maintenance.
One side effect of the pandemic is I have to leave the apartment so infrequently that I can take Lyft everywhere and still come out ahead of what I used to spend on metrocards - I don’t miss riding the subway at all.