Toyota is indeed not done with hydrogen, they now have a prototype that captures carbon from the air and then converts it to hydrogen.(granted it's only 20g or something an can convert now but still
(source:
https://www.motor1.com/news/710347/toyota-combustion-engine-filter-co2/ )
Toyota has multi strategy where they invest in new engines, EV's Hydrogen-EV and hydrogen-combustion. They even claim they already have an carbon-negative prototype.
quite interesting stuff re-fueling an hydrogen car takes about 2 mins, even if they could make super-turbo chargers an EV is not going to beat that.