I think it’s also more efficient to burn the hydrocarbons in a large generator and using the power to charge an EV,
combustion engines on vehicles are limited in weight size and shape, and since its rpm varies a lot during driving it is not operating at peak efficiency
a large and heavy generator can extract more of the energy, and always runs at the optimal operating speed, making it way more efficient, producing enough additional to cover the conversion losses of the mechanical->electric->electrochemical->electric->mechanical chain and then some