It is a missing functionality in Writer to work much harder to re-create the original text (yes, it is not some information that is already present in the PDF, and needs much guesswork, but the status quo in Writer PDF import, producing the same mess of text boxes as in Draw, instead of a reasonable body text, doesn’t make sense at all). It was discussed at the LibreOffice Conference 2023 (see respective talk from @EyalRozenberg; in the post-talk discussion, we shared some ideas on the problem, as well as on the terminology; and indeed, the “editor” term used there in the talk was a bit provocative, but reasonable from the user’s PoV, and we agreed that we need to work on improving the PDF import support, while at the same time, keep educating users on the correct expectations on this import’s never-to-become-perfect results).
MS Word basically does it right.
There are also tools doing OCR and similar job - like e.g. ABBYY FineReader.