In fairness, pure hydrogen is also leaky and hard to work with. That’s why I was asking about the economics of turning it into methane… and yet, one of the other replies I got pointed out that methane is also a bit leaky, so we might want to reform it (or whatever the word for “opposite of cracking” is) all the way up to a room temperature liquid.

I barely remember the process from school, something like this rings a bell: https://en.wikipedia.org/wiki/Catalytic_reforming