What are the best Microsoft Office alternatives on Arch Linux?

LibreOffice is the most common choice and is capable enough for most documents, spreadsheets, and presentations. It may take a little time to learn where familiar features are, and complex Microsoft formatting may not always transfer perfectly, but it is reliable and works offline. For academic writing, it also has useful integrations such as Zotero support.

OnlyOffice is worth trying if compatibility with Microsoft document formats is your main concern. Its interface is closer to Microsoft Office than LibreOffice, so it can feel more familiar for Word- and Excel-style work.

For simpler workflows, AbiWord and Gnumeric are lightweight alternatives for documents and spreadsheets. For presentations, LaTeX Beamer works well if you are comfortable with markup. Pandoc combined with Markdown and LaTeX can also produce polished documents, but those tools are better suited to people willing to build a more technical workflow.

If you already have a Microsoft 365 subscription, the web apps are an option for lighter tasks. They work in a browser but do not include every feature from the desktop applications. You could also test running a supported Office version through a compatibility manager such as Bottles, though results vary by Office release and setup.