So there is the thing in the Bio Hacking community, where they recommend H2 infused water, which should have some benefit on your health. I once saw a water filter station, which was generating H2 in the watertank, so you were drinking H2 infused water. Not sure if there is any science behind it to back this.
We used it as OS for the tank and airplane simulators, just because it made them cheaper compared to buying 500 Windows licenses