SoftMaker Office NX (by SoftMaker, Germany) is a commercial office software suite that serves as an alternative to Microsoft Office. It includes a word processor (TextMaker), spreadsheet program (PlanMaker), and presentation tool, among others. The suite runs on Windows, macOS, Linux, iOS and Android and is sold as a licensed product. Recent NX versions add modern features (e.g. Dark Mode, Markdown support) for improved usability.
LibreOffice
LibreOffice is a free, open-source office suite (word processor, spreadsheet, presentation, etc.) developed by The Document Foundation and a global community.