When you switch to a historic visual diff, the metadata on top is hidden. It would be nice to see the author of the change and their edit comment, as well as the navigation links for the previous and next change, and the link to revert the change.
On the other hand, note that for wikis with FlaggedRevs (e.g. de.wikipedia) the metadata about whether the edit is flagged or not is shown even for visual diffs, but still assuming a two column view.
Specifically, this information is omitted: