Rather, FePS3, like graphene, has a tendency to form thin sheets. But that's where the similarities end.

The original paper's abstract is more helpful than the article:

Two-dimensional materials have proven to be a prolific breeding ground of new and unstudied forms of magnetism and unusual metallic states, particularly when tuned between their insulating and metallic phases. Here we present work on a new metal-to-insulator transition system FePS3. This compound is a two-dimensional van der Waals antiferromagnetic Mott insulator. We report the discovery of an insulator-metal transition in FePS3, as evidenced by x-ray diffraction and electrical transport measurements, using high pressure as a tuning parameter. Two structural phase transitions are observed in the x-ray diffraction data as a function of pressure, and resistivity measurements show evidence of the onset of a metallic state at high pressures. We propose models for the two new structures that can successfully explain the x-ray diffraction patterns.

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.12...

And this general-audience article is IMO better than the one linked:

"The discovery of graphene led me to wonder if I could introduce magnetism to 2-D materials similar to graphene," explains Park. "Physicists have inherited the challenge of studying and explaining the physical properties of the two-dimensional world. In spite of its academic importance and applicability, this field is very much under-explored," he adds.

https://phys.org/news/2018-10-flexy-flat-functional-magnets....