[flumpmaster]

That is not correct. Globally 75% of hydrogen is produced from Natural Gas:

https://www.iea.org/reports/the-future-of-hydrogen

See section on production.

The most commonly used process creates a mixture of steam, hydrogen and CO2. The water is condensed and the CO2 removed to purify the hydrogen product. The CO2 is a concentrated stream. This is sometimes captured and sold as a byproduct (eg food grade CO2 for beverages or dry ice).

[nl]

The gas based production is no better because of the CO2 emissions of course.

[smaudet]

There is a promising electrolysis route as well now, zero emissions:

https://newatlas.com/energy/hysata-efficient-hydrogen-electr...

[nl]

As with all promising research papers, believe it when you see it in commerical-scale use.

In the past most catalyst improvements have run into problems with maintenance.