2020 Subaru Ascent electrical system problems

Reporting a serious incident with my 2020 Subaru Ascent at 21k miles. On October 16th, a burning plastic smell and white smoke from the floorboard forced an immediate stop; I had to call the fire department for safety. The vehicle's battery has been replaced thrice, and the radio system frequently resets. Despite a Subaru recall fix in February meant to prevent such issues, the problem persists, raising major safety concerns.

The audio for all functions and radio stopped working. It was working, parked it for 1.5 hours in garage, started vehicle and no audio. Stopped and restarted the car still no audio. Followed manufacturer's instructions to reset the audio/navigation system and still no audio. Let it sit overnight and it still doesn't have any audio. Trying to get an appointment at the dealership.