Hello ps1,
Looking at the datasheets, the difference appears to be the NAND technology used in the IC. For the S34M08G101BHI000 it uses Spansion Revision 1, which is a NAND flash memory with a 4x nm process. The S34ML08G201BHI000 uses SkyHigh’s Revision 2, which is a type of NAND flash memory with 32 nm technology.
Comparing the two, it looks like the S34ML08G201BHI000 has a newer generation NAND technology that provides higher memory density and better power efficiency compared to the S34ML08G101BHI000.
