Stellaris: A high-field quasi-isodynamic stellarator for a prototypical plant (sciencedirect.com)

Looks like the research was done by Proxima Fusion. Apparently "quasi-isodynamic (QI)" is a refinement of the stellarator design that has only become possible to compute the shape of recently, and Proxima Fusion used ML techniques to help them.

https://www.proximafusion.com/