Google has finally started offering Assistant driving mode as a replacement for Android Auto on phones running Android 12.
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XDA Developers was the first to spot a new prompt in the latest Android 12 beta when using Android Auto, which seems to point to a complete disablement of Android Auto on smartphones.
Google has been working on a new Assistant driving mode to replace Android Auto on Android phones for a few years now, but this appears to be the latest move to entice users to switch to this new service.
Google first introduced Assistant Driving Mode in 2019, but it was delayed. Instead, Google launched Android Auto for phone screens. In early 2020, Google began rolling out Assistant Driving Mode, which is currently not fully available in all countries. Unfortunately, Google did not provide a list of countries or languages that support the new car-centric mode.