Thanks for the reply. The road you describe seems difficult and as an experiment, I'm considering following your path according to the link "ebooklib ...". At the same time, I will review the posts describing the possibility LibreOffice (odt) > Scribus. So far, not even the correct font, italic/bold, indent the first row followed by to Scribus in my attempt. Nevertheless, I've read somewhere (Text and Typography) read that it would work, while it does not seem to be a big deal for users. The way I described as my workflow seems, from my horizon, to be natural. That the author, the designer and the Scribusartist are not usually the same person (unless a simple print is made for the sake of pleasure). And in that case, LibreOffice is perfect. I myself have easily tested templates for the author to approve in lLibreOffice. Even a simple brochure should be easier to produce without the help of Scribus or InDesign. With long learning curve.
I am completely ignorant of the difficulties with formatting between, for example, LibreOffice and Scribus. It's easy to think: it works without problems between eg Word, OpenOffice and LibreOffice, it should be easy to fix it even in Scribus.
Forgive my long expulsion. Just my curiosity to understand how everything is connected. Feel free to comment on other Scribus users. Greetings.