Google has announced that app developers will start seeing their ads in YouTube searches, as well as during video-streaming itself. In addition, developers can also now distribute their ads to Discover. This is the latest version of the Google Feed, and is still found on multitudes of homescreens.
https://www.notebookcheck.net/Google-extends-the-ability-to-advertise-in-YouTube-searches-to-app-developers.428603.0.html