This is not false, but the economics are not good for the full round trip. There are efficiency losses in the conversion both ways and hydrogen storage is not f

This is not false, but the economics are not good for the full round trip. There are efficiency losses in the conversion both ways and hydrogen storage is not fun as it is very low density and due to small molecule size, prone to leaking through almost anything. Probably a lot of hydrogen will be produced this way during renewable peaks, but mainly it would be for industrial processes that need it.