A static site generator can be used to create an .html file that's dependent on the user to execute a javscript web application to show the content. That makes that generated page dynamic. It doesn't change the nature of the static site generator.
That depends entirely on the page. Does it require javascript execution so that the contents are there? Then it's not. If you can open the file and read the text and see the URLs, yes. But if the page was generated by a script without it ever being a file on the webserver's disk, no.
