2020 Subaru Legacy electrical system problems

One hour into traveling on the highway smoke began to come from under the hood so we pulled off to the side of the road. Upon opening the hood, after the smoke cleared, a fire was observed. At that point the passengers exited the vehicle and called 911. There was no warning lights or sounds indicating any problems prior to this. The car burned very quickly and the firefighters extinguished the fire but not before the entire car was burned to ashes.

Radio and control unit randomly restarts and freezes, affecting the radio from working, the vehicle control and driving assistance options, and the two USB ports which are the only power sources in the vehicle from working correctly. I have no audio and cannot reset the radio and cannot change vehicle control functions. When I select certain buttons it does nothing.