Toyota pioneered hybrids, but they remain committed to the idea that a fossil fuel component is necessary. They continue to push for hydrogen, which is generated primarily from natural gas. With a hand-wave that maybe it'll be renewable some day.
But the hydrogen infrastructure doesn't exist, and they haven't solved any of the real problems with it. So they're stuck flacking technology that was amazing in the 90s.
It's because japan can't really compete with china in the EV battery space (nor can anyone else really).
By betting on hydrogen, it's possible to take the lead in a smaller pond as a bigger fish. Tho i'm not a believer in hydrogen - it's too difficult, and costs just as much to transition to that as it would electric. It'd be easier to synthesize carbon-based fuels, and that leverages the existing infrastructure for petrol in place for use.