I think the reasoning is that ultrawide / larger monitors are becoming more common and it's easier / faster to access the taskbar from the center than moving th

I think the reasoning is that ultrawide / larger monitors are becoming more common and it's easier / faster to access the taskbar from the center than moving the mouse to the far edge. And if it's not easier, they have an option to move it back to the left. This is one of the least egregious changes, really.