Google said in August this year that it was testing a keyword for more than 2 search results from the same domain, and today they announced a widening of the results from the same domain, such as the search for "MoMA" (Museum of Modern Art), According to the previous principles, only two search results entries from MoMA's official site domain were displayed, and now they have increased the limit to 4 (pictured below). Even in the rich text summary below the first search results, the business hours link is listed below, and the search results link for the business hours is shown below. Because Google's algorithm can now be more certain that your search for "MoMA" is to get the information of the Museum of Modern Art, then its official website information is the most authoritative most accurate, why not give a few more links?
What does this mean for the masses of stationmaster? On the one hand, if your ranking is hovering below the first page, you may now be kicked to the second page. On the other hand, when the user is searching for your site, you will get more exposure and show more information from the site in the search results. This doesn't always happen, of course, but only when Google has such extreme search results on those very confident keywords.