ChromeOS

ChromeOS began as little more than a full-screen browser and grew a desktop around that premise. A shelf along the bottom holds pinned and running apps, and a launcher button opens a search-first overlay where typing finds apps, files, settings, and the web from one field — search as the primary navigation verb rather than icon-hunting. Windows tile and snap like a conventional desktop, but much of what runs is a web app or a Linux or Android container stitched into the same window manager. The design optimizes for fast boot, automatic background updates, and low cognitive load, which made it a fixture in classrooms. The flip side is its ceiling: heavy local workflows still feel like guests on a system built from the start to assume the cloud.