German Lower Saxony recently halted developments of a hydrogen locomotive fleet, arguing that electric battery ones are cheaper to operate https://qz.com/the-dream-of-the-first-hydrogen-rail-network-has-died-a-1850712386
Nonetheless, Alstom and Siemens remain fixed on the production of hydrogen-fueled trains https://news.europawire.eu/siemens-mobility-successfully-tests-hydrogen-powered-mireo-plus-h-train-in-bavaria/eu-press-release/2023/09/16/15/35/04/121944/
Take every opinion from Drew DeVault with a grain of salt.