How do I keep the dock on the bottom of the upper monitor in a vertically stacked dual-monitor Mac mini setup?

Hi Apple Community,

I have a Mac mini M4 (macOS Tahoe 26.1 latest) with two identical external monitors physically placed one directly above the other (perfect vertical stack).

Current setup that I want to keep unchanged:

• In System Settings → Displays → Arrangement, the upper monitor is positioned above the lower monitor — exactly matching real-world physics (cursor goes up to upper screen, down to lower screen).
• 
• Upper monitor is set as Main Display (menu bar is there).
• Dock position: Bottom
• Automatically hide and show the Dock: OFF (I refuse to use auto-hide — I need the Dock permanently visible at all times)
• Displays have separate Spaces: ON (I need independent Spaces and full Stage Manager functionality on both screens)

The problem:

The Dock always appears on the very bottom edge of the lower monitor.

I want the Dock to stay on the bottom edge of the upper monitor instead — right in the middle between the two screens — so it’s equally close and efficient to reach from both displays.

Right now, the only way I’ve found to achieve this is to invert the Arrangement (put the physically upper monitor “below” in settings), which does force the Dock onto the physical upper screen… but then cursor movement is completely backwards and unusable for daily work.

Question:

Is there any way at all in macOS Tahoe 26.1 to make the Dock stay on the bottom of the upper monitor while keeping:

1. Arrangement matching real vertical positions (upper screen above lower screen)
2. Displays have separate Spaces enabled
3. Dock always visible (no auto-hide)

I don’t want to use Left/Right position, and I don’t want to auto-hide. I just want classic bottom Dock, but on the upper screen when screens are stacked vertically.

If this is currently impossible, please consider this a feature request — many people use vertically stacked dual monitors and would love this option.

Thanks for any help!

[Re-Titled by Moderator]

Original Title: Mac