The first Android 13 beta not only brings innovations to the operating system and its interface but also influences the Pixel Launcher on the Pixel smartphones. With the latest update, this gets a new search bar, which no longer consists only of the local filter function, but places the complete Google search bar at this point. Practical, but probably superfluous.
The Google search bar is permanently present on the vast majority of Android smartphones and can be found either at the bottom of the display or via a widget a little further up on the home screen. In all cases, it allows you to search not only the web but also the local content on the device. At the bottom, app icons of the installed applications appear, which can be called up via them. This could be exactly the reason that you want to bring them back into the App Drawer with the beta.
Starting with the first Android 13 beta, which has been available for all Pixel smartphones for two days, the original search feature of the Pixel Launcher App Drawer has been replaced by the Google search bar. As a result, there are not only other shortcuts such as voice search and Google Lens, but also the usual search results. This means that the content found from the web is prioritized over the locally installed apps. Is not quite as useful at this point, but could still be turned around.
It is discussed whether it is a bug or a deliberate exchange. I think that the exchange has been deliberately carried out and that in the future a different prioritization of the results will be made at this point.