From what I understand geothermal itself refers to heat of the earth (crust) while geothermal energy refers to energy generated within the earth mainly but not

From what I understand geothermal itself refers to heat of the earth (crust) while geothermal energy refers to energy generated within the earth mainly but not exclusive, nuclear decay. Calling ground heat geothermal is therefore correct, calling it geothermal energy is not. (see: https://education.nationalgeographic.org/resource/geothermal-energy/ https://education.nationalgeographic.org/resource/geothermal...)