Sure, when I open the page in my browser window (1223px), I have left and right sidebars. Now I zoom in so the font is a size that I like (new viewport is 980px) and I only have a right-hand sidebar. So far so good. Except, if I refresh the page, now the right hand sidebar goes away for some reason. Zooming back out now results in the right-hand sidebar appearing but the left-hand sidebar staying hidden.

So there's some weird inconsistency in the layout, but the upshot is if I bookmark the page and return to it (or open a link in a new tab), I don't get a right-hand sidebar.

If I did get a sidebar, I'd prefer it to be the left-hand sidebar than the right-hand sidebar, but that's more personal preference.