I don’t think any of those really apply.
She didn’t have experience with it, but she was good with computers. When she realized what she was looking at, she made the famous exclamation. Not all that different than people posting stuff to Linux in the wild threads.
Fsn is what was up on the screen, so that’s what she used. Probably easier than figuring out how to get to the command line on an unfamiliar system.
That’s also empty weight on the Learjet, gross weight is higher. This one is presumably that weight with the batteries so I suspect is smaller. Wish there were more details.