Ubuntu

Ubuntu's desktop is built on GNOME, and its defining gesture is the Activities overview: hit the Super key or throw the cursor into a corner and every window zooms out beside a workspace strip and a single search box that finds apps, files, and settings at once. A dock pinned to the left edge launches and switches favorites. The design is deliberately opinionated and spare — few visible toggles, a search-to-do-anything philosophy, and settings grouped into one clean panel rather than scattered across trays. That restraint divides people: newcomers appreciate the calm, while tinkerers reach for extensions to claw back the menus and indicators GNOME removed on principle. Underneath the friendly shell it stays a full Linux system, so total configurability is always one terminal window away.