41% of the first page of Google search results is taken up by Google products.

[Mackin USA]

A trending search in our data for "myocardial infarction" shows how Google has piled up its products at the top. It returned:

    Google's dictionary definition.
    A "people also ask" box that expanded to answer related questions without leaving the search results page.
    A "knowledge panel," which is an abridged encyclopedia entry with various links.
    And a "related conditions" carousel leading to various new Google searches for other diseases.

All of these appeared before search results by WebMD, Harvard University, and Medscape. In fact, a user would have to scroll nearly halfway down the page—about 42 percent—before reaching the first "organic" result in that search.

https://themarkup.org/google-the-giant/2020/07/28/google-search-results-prioritize-google-products-over-competitors

[BoL]

Some conversation on hacker news about it
https://news.ycombinator.com/item?id=23975001