So is gasoline.
No. It is easy for gasoline vapor to be too rich to ignite. If not diluted down to 7.1% concentration with air, it will not ignite. The lower flammable limit is 1.2%
https://www.mathesongas.com/pdfs/products/Lower-%28LEL%29-&-Upper-%28UEL%29-Explosive-Limits-.pdf
Gasoline is a liquid and hydrogen is a gas. Both react with oxygen to produce energy. Actually, gasoline has to be atomized in an engine by a carb or fuel injector in order to burn efficiently.
The problem with hydrogen is that, because it is a gas, it much more easily dispersed and therefore more likely to react with all of the fuel being consumed in an instant. Depending on the available oxygen, of course. Only the surface area of a liquid like gasoline is exposed to oxygen and therefor the reaction should be a lot slower.
This is why grain elevators are so dangerous. The grain particles are dispersed within the medium that has oxygen (air). And grain is not that reactive with oxygen as hydrogen.