No, but the idea would be like that. The Prius can run on electric mode a few miles before turning on the ICE to either recharge the HV battery or provide extra power to the front wheels. This plane doesn’t recharge its electric motor batteries yet while the ICEs are running.
It’s a proof-of-concept plane, not ready for commercial service, yet, but I’m sure once Heart Aerospace finds out how to keep the electric motors running in parallel like a Toyota Prius, this airplane will be a great replacement for ATRs and CRJs in short routes.