Google has been testing how sitelinks show up on brand queries on desktop search results for the past month or so.
The test revolves around enhanced sitelinks, which are including a line of description copy with ech link and appears only on brand queries on desktop. Typically, these appear in two columns below the ad as shown in the example below:
A list format for enhanced sitelinks is currently being tested. The link font is smaller, but taken together, the list of four enhanced sitelinks takes up more real estate than the column format.
A search advisory at Good Apple Digital, Erik Hamilton, spotted this example on a search for “Home Depot” last month:
Frederik Hyldig, head of PPC at s360, saw the same thig when he did a search for “Nike” in Denmark.
With this list, it brings the desktop format closer in line with mobile, where sitelinks on brand results typically shown in a list. But, it doesn’t show with the enhanced description copy.