Other Fuel System Pump problems of the 2020 Subaru Outback

Driving on a busy road, made a stop at a light. When I got the green arrow to turn left, car just died in the middle of the intersection. Was fortunate, 4 good individuals jumped out of their vehicles to push us out of the intersection and avoid collision with oncoming traffic. Called Subaru for a tow. During the 2 hour wait, tried to start a couple of times with no luck. When tow truck arrived, was to put it in neutral, so attempted to start again, which it did. Drove immediately to dealership. Stayed there for 2 and a half weeks. They replaced fuel pump, which in my mind, may not be at the root of the problem. My thoughts are that something overheated, possibly a circuit or software that caused the malfunction. It was a 95 degree day, the car had been idling for about 20 minutes in a store parking lot right before the shutdown. In talking with Subaru, they will not give me root cause once they do further analysis on the problem. I feel at great risk this can happen at any time going forward, (ie on the interstate, at an intersection, etc). I'm hoping that logging this incident will help other Outback owners know of the potential danger they may be in.