My experience with my Prius PHEV is the same. I don’t even have a level 2 charger. I just plug it in in the garage overnight, and most days I don’t use any gas.

The only time the ICE turns on before my EV range is up is if I hit the windshield defrost button when it’s cold. That’s presumably to prioritize getting heat out through the vents quickly. I’ve never accelerated fast enough, nor gone fast enough to trigger the ICE engine taking over. It’s straight up an EV for my first ~40 miles every day.