The vast majority of Google apps have updated their bottom bar to the latest Material 3 design. The Google (Search) app did that ...

Google is testing a bottom bar for the in-app browser present in the Google app. This would align with the bottom bar in the main Google app.

Google is now testing a Material 3 bottom bar redesign with an integrated search field. At least one user today has encountered this bottom bar redesign in Google Search on Android.

Google is once again testing a Material 3 bottom bar for the Google app, but it’s currently only available in the beta version ...