Hydrogen was the future in the 90s, when the alternative was lead acid batteries. Nowadays hydrogen fuel cell cars don't actually top the charts on range, battery EVs have taken the crown.
Hydrogen promised to be a drop-in replacement for fossil fuels. You still needed big industry to make and distribute it, you still needed filling stations to sell it to end users, you still took your car somewhere to fill it up. Everyone could just keep doing their thing. But it was going to be so expensive to switch over that everyone dragged their heels and kept using fossil fuels, so now we're entering the post-hydrogen car era without it ever arriving.
If we'd had hydrogen fuel cell cars 30 years ago, today we'd have manufacturers putting bigger batteries and charging plugs on them to make plug-in hybrids and move away from expensive hydrogen.