The Reset pin on all ESP32 chips (also known as the EN pin) is a power shutdown pin, that when pulled low (pulled to GND) cuts the power off to the ESP32.
It’s not an actual chip reset like in other MCUs that leave the power on, but reset the chip state. On the ESP32, it’s a full power down and bring back up, like the chip has just been powered up from scratch.
All Unexpected Maker development boards ship with a reset button and the reset pin exposed in the headers.