Not even EVs. The work was getting done by researchers improving electric motors and batteries. As soon as the technology was viable Elon jumped on it and marketed himself as the person behind it all. Same goes for PayPal which he stole credit for, rockets that people already worked decades on, tunnels that are just bad metros, and machine learning (AI) that people were already doing since the 70's and only recently had breakthroughs because of the increased ability to feed it data en masse.
The only credit he should get is having the power and charisma to capitalize on the work of others. He's a Thomas Edison and not a Nikola Tesla.