Shell, one of the largest distributors of hydrogen for non-industrial purposes, also recently totally exited the game, shutting down all their stations. This is one of the things that, IIRC, drove the massive discounts on the Toyota Muira.
California’s Hydrogen Economy Dealt A Hammer Blow By Shell’s Exit (forbes.com)
20yrs ago my company had a joint venture pilot program going with Mercedes Benz. We had a small electrolyzer unit onsite at LAX airport and a tiny fleet of MB hydrogen fuel cell powered cars. I never physically saw the unit, but I was able to operate it remotely in the central control room where I worked at the time. Basically start it, stop it and see some parameters. The unit was programmed to run during off-peak hours and fill a gas receiver with H2, specifically for these few MB vehicles. The program lasted a year or two and faded into oblivion.