Google is testing a new design for its Featured Store ads section on mobile devices. The section, which previously appeared at the top of the page, now appears below Shopping ads and includes a “More stores” button.

Currently, when the SERP first loads, the section displays two to three featured stores. If a user taps the “More stores” button, the section expands to display up to five to six results. This test appears to be limited to mobile devices and has not been observed on desktop versions.
This update was shared by Sachin Patel.