Windows users expect to snap windows to edges, switch windows with Alt-Tab, see window names on hover and focus whatever is under the pointer. A Mac does none of these the same way. You can learn the macOS equivalents, or use Casement to add snap layouts, Option-Tab, Dock window lists and hover to focus.
What the problem looks like
You switched to a Mac for the hardware or for work and found that your hands do the wrong things. You drag a window to the edge and nothing happens. You press Alt-Tab and the wrong key does something else. You hover over the Dock and see only an app name. You move the pointer to a window and click, but the first click is spent waking the window instead of pressing the button you aimed at.
None of this is a flaw in you or in the Mac. The two systems have different ideas about what a window is.
The main differences
| On Windows | On a Mac | Why |
|---|---|---|
| Drag to an edge to snap | Green button, or drag in newer macOS tiling | macOS tiling options are limited |
| Alt-Tab lists windows | Command-Tab lists apps | macOS organises around apps |
| Hover on the taskbar shows windows | Dock hover shows the app name | The Dock is app-based |
| The window under the pointer takes keys on hover (optional) | Click to focus | macOS focuses on click |
| Windows key and arrows tile | No built-in equivalent in older macOS | Not part of the original design |
Learning the macOS way
It is worth learning the native tools first: Command-` for windows of the same app, Mission Control for an overview, Spaces for separate tasks, and the Dock context menu for window lists. Many people settle happily into these within a few weeks.
The guide make your Mac work more like Windows covers the settings that bring the two closest together.
Bridging the gap with Casement
If you would rather keep your habits, Casement provides the Windows behaviours as free features: snap layouts when you drag to the top of the screen (snap layouts), Option-Tab to list every window (window switcher), window names on Dock hover (Dock window lists) and hover to focus, which makes the window under the pointer active without raising it.
You can adopt one at a time. Many people start with snapping and the window switcher and add the rest later.
What stays different
The menu bar stays at the top of the screen, apps keep running when their last window closes and Command is the main shortcut key. Those are macOS conventions, and it is easier to learn them than to fight them.
Questions people ask
Can I make Option-Tab behave like Alt-Tab?
Casement's Option-Tab lists every open window and switches on release, which is close to how Alt-Tab works.
Does hover to focus raise the window?
No. It gives the window under the pointer the keyboard focus without bringing it to the front.
Is Casement a Windows emulator?
No. It adds a handful of window behaviours to macOS and does not run Windows software.
Try Casement
Casement is a menu-bar app for Mac that puts each Chrome profile in the Dock as its own icon and adds snap layouts, hover-to-focus, a window switcher, Dock window lists, a drop shelf and display controls..