When presenting working experimental nuclear reactors Helion is not the company that I would use as my example. They are borderline scammy and given their lack of progress they seem to be stuck in the moving the goalposts phase for a long long time now. I wouldn't bet on them ever completing a working reactor that produces net power.

Maybe, but my point is that it does seem to be possible to generate electricity directly from nuclear reactions, without going through a thermal cycle (making heat, creating steam, using that to turn a turbine). I think there's some other experimental process that promises to do this with fission.