There is honestly no actual demand for something like that, I'd guess. Screenshots are easy, and your OS usually comes with a built-in tool. And how to use that tool (or find a tool) is a matter of typing "how do I screenshot on X" into google.

And if even this is still too "technical" for a user, I have seen people take literal shots of their screens, with their phone camera or whatever.

I'd be surprised if the built in print to pdf function doesn't already circumvent this.