Lightweight Linux distributions get a bad rap for shipping with minimal reinstalled software. Besgnulinux, loaded with old-school charm, is the exception.
If your main complaint with LibreOffice is that it looks like it's from 2005, then ONLYOFFICE is for you. The desktop editors ...
If Windows is your preferred operating system, consider these open-source apps. There are numerous open-source apps available for almost any task. These are all free to install and use on Windows.