Context: LaTeX is a typesetting system. When compiling a document, a lot of really in-depth debugging information is printed, which can be borderline incomprehensible to anyone but LaTeX experts. It can also be a visual hindrance when looking for important information like errors.
BTW I wrote my thesis in LibreOffice. That’s its own can of worms, but at least I knew how to wrestle it into submission – other than LaTeX. Set the font to Latin Modern Roman and no-one will know the difference.
LaTeX writes the same fonts better, at least compared to MS Office. I notice it when a papers been written in word with the Journal template with the same fonts and style. LaTeX kerns and splits new lines nicer.