This is not so.
Compare LibreOffice to MS Office --
- Opening and editing a large document (i.e. The Bible) is much faster in LO than MSO.
- Creating, modifying and applying styles is much easier in LO than MSO.
- It is relatively easy to create and edit multi-file (Master) documents in LO than MSO.
- LO will let you autosave your documents no matter where you save them - local drive, shared drive, cloud drive. MsO will only let you autosave your documents if you use MS OpenDrive
- If you save your multi-file (Master) on MS OpenDrive it will destroy it. This doesn't happen with LO.
- The complete documentation for all modules of LO is freely downloadable, as either LO documents or as PDF. You can't do this with MSO.
Consider TeX/LaTeX. This has been free software for some 40 years now. It still is the best, most flexible and accurate software for laying out text on a page. It is better than QuarkXpress, Adobe InDesign and much, much better than MS Word. It is also simpler and easier to use well than MS Office.
Consider Joplin as a note-taking package. It is much better than MS OneNote, and works across multiple platforms, and can synchronise across them. It also has more, and more useful export options, and many, many more formatting options.
Afterthought.
Open source and freeware software is made by people for the love of it. Generally they do the best they can.
Commercial software is made by organisations that want to make money. They will have it created as cheaply as possible, with major parts of the software outsourced to $5/hour off-shore programmers. This cannot and will not produce quality software.