Hydrogen is a massive waste of energy. You have to put a ton of energy thru water to split it, unless you’re talking wind or lots of solar then that’s going to come from burning gas. The current method means only a handful of cars can use the pump per day which is worse than BEV.
IMHO BEV is the way forward, hydrogen is a sinkhole. Samsung have solid state batteries due very soon with 3-5x higher energy density & after that the inventor of lithium ion batteries has a ceramic battery coming that’s over 10x current energy density.
There are also batteries that use sea water & lots more all behind the scenes.
The solid state batteries eliminate the risk of fire too