That diagram only shows waste heat when converting to electricity.
So if fossil fuels get converted to electricity it shows the roughly 50% loss, but if they're used in cars it doesn't show the 80% loss.
Electrifying everything makes a big difference, so much so that people quoting primary energy figures rather than final energy (the stuff we actually use to do stuff) are liars.
And this diagram, which is misrepresenting transport fuel as if it was final energy is also misleading for similar reasons.
So if fossil fuels get converted to electricity it shows the roughly 50% loss, but if they're used in cars it doesn't show the 80% loss.
Electrifying everything makes a big difference, so much so that people quoting primary energy figures rather than final energy (the stuff we actually use to do stuff) are liars.
And this diagram, which is misrepresenting transport fuel as if it was final energy is also misleading for similar reasons.