If it’s on the same device, it would open a page showing her what is in the downloads folder of his user. I think the joke is he might have something embarrassing there, but I wouldn’t know since I only have things there when I’m downloading them and then immediately file them away to some actual hyperspecific folder
why would they be on the same device? how can they be on the same device at the same time? also if she gets the full link it would only show her the html page, not the rest of the folder