A mosfet is just an electronic switch/relay --- many "mosfet" mods also have a pcb with some protection circuitry, but not all. It doesn't look like the gloom clone has protections, just the mosfet switch (I could certainly be wrong though, it is Wednesday ... anything can happen day).
Pretty sure you’re right about this. There’s no literature in the box, and very little description on fasttech. Only someone in comments said it has a mosfet. There’s probably info on the OG out there, but I’m not positive it would apply 100% to the clone.