Even if it takes more space, there are still benefits over biofuels.

The hydrogen can be created using electricity. Currently it is not very efficient, but only uses electricity and water. Electricity can come from de carbonated (/low carbon) sources.

And a fuel cell will use that hydrogen to generate electricity by combining the hydrogen into water with outside oxygen.

For the biofuel, it’s a big climate hoax. The issue with bio fuels, is that the energy required to produce them is huge. It required bacteria producing carbon emissions, and the fuel also produced carbon emissions. Whatever entered that plan, will get out, and even more because of the transformation. (i don’t remember which video from Undecided with Matt Ferell was about biofuels). Tho maybe it could be used for something. To get slightly less carbon emissions than with normal fuel.

There may also be a solution with batteries. However the energy density for them is lower compared to hydrogen. Tho, there may be some battery innovation I saw passing by which could be pretty interesting.