I use LibreOffic,184.108.40.206. on Linux 4.15, most days, as a author, well I think I'm an author. Never have any serious problems even with alternate headers, footers, page brakes, page numbers, chapter indexing, and all the other formatting that is required by the printers. And believe me, E. books are even worse. Although I must admit one thing, its spell checker in English English, does have some strange ideas sometimes.