Column documentation explains how to achieve this:

However, I would like to achieve this:

That is, all items inside the Column should be horizontally aligned to the center. anchors.horizontalCenter: parent.Center does not work. How can I obtain the desired result?
I suppose you can use
anchors.horizontalCenterfor all the child items to align them with thehorizontalCenterof the column given that the column has an id you can refer to.