I’m commenting here as a user reading a PDF. The fact that someone else could have laid it out differently doesn’t change the fixed layout of the PDF that I’m trying to read.

There’s a reason responsive design has been a big deal for the last 10+ years and I don’t think the benefits of PDF are worth throwing it out.

As someone who really detests responsive design, the lack of it in a PDF strikes me as a feature, not a bug.