OmniDock guides
When is macOS window tiling enough?
If you mostly want two windows side by side, try your Mac's own controls first. macOS Sequoia 15 and Tahoe 26 offer desktop tiling through dragging, the green window button, menus, and keyboard shortcuts. An extra tool is worth considering when a specific part of that routine still gets in your way.
Check your macOS version before following a tutorial
Desktop tiling and full-screen Split View aren't the same workflow. Newer macOS versions offer layouts on the desktop; older versions have different controls and may show full-screen Split View options instead. Choose your version in Apple's window-tiling guide before comparing the buttons on your screen with a screenshot online.
For a simple side-by-side setup, start here
On a Mac with the newer tiling controls, hover over a window's green button and choose a half-screen layout under Move & Resize. You can also drag toward a screen edge and release when the layout highlight appears. If that gives you the working space you need, keeping the built-in setup is a sensible choice.
Name the extra control you actually need
“More layouts” is only useful if one of them fits your work. You might want a document in one third of a wide display, a particular custom size, your own shortcut, or a repeatable way to move the current window to another monitor.
OmniDock supports halves, corners, thirds, custom window positions and sizes, and moving windows between displays. You can apply layouts through shortcuts, its green-button controls, or drag activation zones. Start with the one action you keep repeating; you don't need to configure every option.
The window-layout guide explains the available controls and setup.
A custom layout isn't a saved workspace
OmniDock's custom layout defines where a window goes and how large it becomes. It doesn't mean one command will reopen all your apps and restore a whole desk of documents. If that is your main requirement, treat it as a separate feature to verify when choosing a tool.
Check the windows that matter to you
OmniDock can resize normal windows that their apps allow macOS to control. A fixed-size panel or an app's minimum window size can prevent the layout you expected. Leave full screen before applying a layout, and try your actual apps and displays. Accessibility and Input Monitoring are required; Support explains the checks.
If two tools react to the same drag or shortcut, turn off the overlapping action in one of them. Then you can tell which setting is responsible for the result.
Choose the smallest setup that solves the problem
Keep the system controls if they cover your day. Choose a focused window tool if window placement is your only unmet need. Consider OmniDock if you also want Dock previews, app hotkeys, or other everyday actions in the same app. More features alone don't make a tool a better fit.
Sources and notes
Apple: Tile windows on Mac. System instructions describe the newer tiling interface, not every supported macOS release. OmniDock details follow its linked feature and support pages; this is a selection guide, not a performance comparison.