While some Android makers have implemented system-wide search on their devices, it is not part of the core OS. That is about to change with Android 12 as beta 4 for the Pixel phones does support it, even if it this feature hasn’t been officially released yet. It looks like work on it is still ongoing as it appears incomplete. Right now you can only access it through the search bar in the app drawer, the search widget on the homescreen still uses the old search feature. For the app drawer, a neat new option can make the keyboard pop up every time you open the app drawer, allowing you to...
Source: https://www.gsmarena.com/android_12_has_a_cool_systemwide_feature_that_isnt_active_yet-news-50798.php