OP here. Responding to multiple PPs. She is a real nanny, although we are her first job as a nanny. She has been with our family for three years though so she's not a newbie to being a nanny or to our family. She's live-out. I pay her very well with benefits, nanny has been happy with our family and has turned down offers for more pay to stay with us. I'm not a difficult boss; she would have left well before now if I were. I do have high standards, but I keep my thoughts mostly to myself and come here to vent occasionally, which is how we've lasted this long
I'm asking her to take DD out for TWO hours at a time, which includes a 10 minute walk to the park. Yes, they have plenty to do there for an hour and 40 minutes, it is a huge park with lots of paths to walk/hike/scooter/bike, plus they can have a picnic and eat a snack and read book.
These are strange times and an adjustment process for all of us, including the nanny so I have been flexible. Like I said, if they are 20-30 minutes late some of the time, or even most of the time, I wouldn't care. We've been sheltering in place for over a month now and did not have nanny for part of it so I get how difficult it is to maintain a strict schedule. But I also am well aware of how the day goes awry if you DON'T attempt to maintain any routine at all.
I built in an hour of transition time between Zoom and outdoors during which she and nanny do an activity. I tried to keep the schedule pretty easy, which is why it's frustrating that nanny can't, or rather won't, stick to it. Also, I never said that I'm having such a hard time. Without the extra help, I was doing okay (nanny didn't come for a couple weeks), with the extra help, I cannot call life hard. But that doesn't mean that I have to accept however nanny does her job and that she disregards my clear wishes.