Buzz/vibration felt on gas pedal if push a little hard?

Hello,
My Prius Prime is about 1 month old. Since the first day, I feel vibration/buzz on the gas pedal whenever I press a little harder on it (like when I start driving uphill or merging into freeway). I didn't feel it on the day I bought the car because there were many things going on that day. This buzz/vibration is noticeable and significant compared to my old 2012 Camry car.

Is it normal?
Thank you.
Huyan