[dredmorbius]

More or less, yes.

Straigh molecular hydrogen is brutally difficult to work with. It is hard to store (high pressures and/or low temperatures), bulky, embrittles metals, and is violently explosive.

Synthetic analogues of fossil fuels (kerosene, petrol) are chemically virtually identical to what we've been using for the past century of powered flight (and should actually be cleaner/purer). There are few unknowns, safety is quite high, and the storage, handling, and combustion properties are well-understood and excellent for the application.

Powering FT fuel synthesis via photovoltaic or other solar processes could certainly work.