"Most of our desktop applications have a toolbar, sometimes they even have multiple toolbars next to or stacked on top of each other. More complex desktop applications such as Krita, Kdenlive or LabPlot often consist of multiple sub-windows, docks, tabbed views, etc. Docks and toolbars can be undocked, moved around and arranged freely and when dragged over a part of a window snap back into the window. This allows the user to customize their work environment to their liking and needs. This worked fine on X because it lets you do anything, this post explores the situation on Wayland."