Google Docs, Sheets and Slides★★★½☆Fast cloud-based office suite, with good collaboration and mobile support. Too bad I don’t trust Google’s servers any more than Microsoft’s these days.
LibreOffice★★★★☆A complete open-source and Free office suite for your desktop or laptop, comparable to and largely compatible with Microsoft Office. I’ve been using the word processor and spreadsheets for decades on Linux, years on Windows, and occasionally on macOS.
Microsoft Outlook (Desktop)★★★☆☆I won’t say I’ve never liked Outlook, because the macOS version has been pretty decent for a while now (if a bit of a resource hog), but the Windows versions have always been awkward, cluttered, and quirky.