what AI says
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MacOS does not natively allow you to place the Dock at the very top of your screen; it can only be positioned at the Bottom, Left, or Right edges. You can move it to the side or adjust how it behaves through your system settings. [1, 2, 3, 4, 5]
How to move the Dock to the Left or Right edge:
- Click the Apple Menu in the top-left corner of your screen.
- Select System Settings (or System Preferences on older macOS versions).
- Scroll down and click Desktop & Dock in the sidebar.
- Locate the Position on screen setting and choose Left or Right. The Dock will move instantly. [1, 2, 3]
If you want the top of your screen free for app windows but prefer the Dock to stay out of the way, you can turn on Automatically hide and show the Dock in the same settings menu, or use the keyboard shortcut Option + Command + D. [1]
Would you like help with changing the size of the Dock or adjusting its magnification while it's positioned on the screen?
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more
Change Desktop & Dock settings on Mac - Apple Support (CA)
Got 2 monitors on top of one another - Any way to make the dock appear on the top monitor? : r/MacOS
more hits
macos How to place dock at top of screen - Google-