I think with hydrogen, it's important to differentiate between fixed (or predictable) route vehicles like long haul trucks, busses, ferries and passenger cars. Building fueling depots in relatively few spots (like ports, bus stations) might be doable if it makes sense otherwise. EVs win in other applications because most of the car-using world is already wired for electricity & capacity can be upgraded.
I'm kind of intrigued by operations like this
https://www.gogoro.com/ which offer battery swapping stations for lightweight scooters. They are apparently having some success in various asian countries, and removing scooter emissions could make a large difference to daily life in crowded cities.
Closer to home, I think more about electric cargo bikes like
https://www.ternbicycles.com/us/bikes/472/gsd or
https://urbanarrow.com/en-na/ . They're expensive vs normal bikes, but much less expensive than cars and could replace a lot of local trips. I think electric bikes in general have a lot to offer because they don't come with the crippling debt load associated with car ownership and seem to be attractive to people who might not ride traditional bikes.