Gui.pick_node() is not working as expected with offset coordinates on Android and iPhone

gui.pick_node() is not working as expected with offset coordinates on Android and iPhone.
I have created a reproduction project here:

A pie node is displayed slightly above the touch point, and its color changes when the pie’s position overlaps with a box node.
When testing on mobile, the Y-coordinate detection is off.
No issues occur during testing on Windows or macOS.