Some questions, at least on meta, are further to the right than others:
(Firefox 62.0.2 on Windows 10)
In this screen shot, I added red lines to try to show how the columns don't always line up. At first I thought the question title had a space at the beginning, but then I noticed the tags were also further to the right, and in fact the other columns aren't lined up properly either.
It doesn't look very good.
-additional from user3169-
-additional from ColleenV
I don't see it in Firefox on my iMac, but I do in Firefox on Windows. I also see horizontal alignment issues.
EDIT 2018-10-13: With the new design, things seem somewhat better, but they still aren't lined up quite right: