Why is that a problem, exactly?

With rising sea levels and general water shortages, why don't we also use them as desalination plants?

Surely there has to be a way to deal with brine, it's just salt and water after all?

Hey now, we could also use this technology breakthrough to move water from a low elevation to a higher one.

Somebody was using the push against magnetic confinement in a pulse reactor to harvest magnetic - > electric directly but it's been a while since they've been in the news.

edit: Just looked up where they (Helion) are, looks like they might have overstated their position for venture capital. TBF, they are collecting energy from the spike in the confinement pulse, it's just pretty likely less than they put in to create the pulse :)

you have a better plan?

Steam makes the magnet go spinny

Could be supercritical CO~2~, actually

Fusion releases a daughter particle and a neutron. The daughter particle is much larger and will deposit its energy back into the plasma, the neutron will travel much further until it hits a collector outside the chamber, heating it up, which will heat water. You don't get to decide which direction the neutron goes, so you have to build this collector around the entire thing.