FeFETs are planned for embedded non-volatile memory, eg. the memory for code storage build into microcontrollers, not SSDs. In current devices this is typically

FeFETs are planned for embedded non-volatile memory, eg. the memory for code storage build into microcontrollers, not SSDs. In current devices this is typically NOR flash, and the code executes directly from it. There's no pool of empty blocks, but the cells are single level so endurance is still acceptable.