:hugs I think they all have passed, but pictures can be deceiving so you may wait a couple of days first before pitching just to be sure.
No clue, sometimes they just give up, what breed are these? How do they smell?
I open my incubator quite a few times during lockdown with no problems. If they were mine, I'd give them a quick candle to see if they have internally pipped or are just shadowing.
What's the temperature and humidity in your incubator?