Windows Auto-Hide Taskbar crossing Multiple Displays

I have a Windows 11 laptop with two external monitors arranged above it, like this:

Monitor 1 is the laptop display. Monitors 2 and 3 are external monitors.

My Windows taskbar is set to auto-hide. When I move the mouse from the top edge of monitor 1 upward onto monitor 2 or 3, Windows briefly triggers the taskbar. The taskbar appears at the top edge of the laptop screen, then seems to move/animate up onto the external monitor.

This happens because the cursor crosses the taskbar activation edge while moving between displays. I have tried rearranging the monitors in Windows Display Settings, but I have not found a layout that prevents it while keeping the physical arrangement correct.

Is there a native Windows setting, registry value, Group Policy setting, or reliable third-party workaround to prevent the auto-hidden taskbar from appearing on the below monitor ONLY the correct top monitor?

I am also aware of Windhawk, but I am not sure whether there is a specific mod that handles this behaviour.

Laptop: Lenovo Thinkpad X1 Gen8 Yoga
OS: Windows 11 25H2 (Build 26200.8246

If you want the taskbar to be available on all displays when you touch the bottom, you can’t avoid this (because crossing from the top of monitor 1 [your main display] to the bottom of 2 or 3 necessarily touches the bottom of the respective monitor) - but if you disable the taskbar on non-main displays, there’s no taskbar to appear on the secondary displays.

To disable the taskbar entirely on the secondary displays, right-click on the taskbar (on the main display), select “Taskbar settings”, and under “Taskbar behaviors” make sure that “Show my taskbar on all displays” is unchecked.