I don’t understand.
The three phase chart eg gas, liquid, solid.
Gasoline is a liquid at room temperature, hence convenient.
Natural Gas is liquid, I believe, if pressurized, is RTemp.
Hydrogen, unfortunately, can NEVER be a liquid at RTemp. If pressurized, it must ALSO be cooled down. Hence it is inconvenient for humans.
Hydrogen is NOT a liquid, even if pressurized, at human temperatures. High energy cost to cool it. Requires energy to store hydrogen over time.
Hydrogen, like the metric system, is AWFUL for everyday human living. But it is trendy progressive to jump on the bandwagon.