There is no explicit option to change page size and orientation in the print menu in the browser. But we set these parameters in the report styles. And sometimes Chrome understands them.
In this case, we can see from the first screen that you have set the page parameters incorrectly: the orientation is Portrait, and the dimensions are from Landscape. And most likely Chrome sees the Portrait orientation and tries to rotate it to place it correctly on the label.
Try to set the template page to the correct dimensions: orientation Landscape, dimensions PageWidth=7 PageHeight=10.