I reckon some of the water vapour in the atmosphere will have once been steam rising and cooling. But probably not very much, so it’s fair to say hydroelectric generation may happen to use some water that was once steam, but I don’t think they can be said to rely on steam.
I think the thing that all dynamo based based electricity generators depend on in common is probably the pressure difference.
It’s also called a “duck-billed” platypus, so there must be other types. “Kangaroo-eared” platypus really doesn’t seem any more far-fetched.