NUMBER OF SEO POSITIONS LIMITED BY DOMAIN ON GOOGLE: WHAT DOES IT MEAN AND WHO IS IT REALLY ABOUT?
Concretely, since June 06, 2019, the number of search results pages (SERPs) with more than two natural results at the top of the page from the same domain name has dropped drastically.

Google announced on Twitter that it has listened to the webmasters and launched this update to offer more diversity in its search results.
In fact, up to now, on certain requests of Internet users, some sites could appear more than 3 times in the first page of the search results, This, in addition to annoying the competing SEOs, could also have a negative impact on the user experience if the over-represented site did not fully meet the expectations of Internet users.

On the other hand, Google Maps results, featured snippets and people questions also ask are not affected by this update, only the traditional natural results are. It will therefore always be possible to be indirectly visible more than twice by SERP with a single domain name!