I think I'm in the same boat. Trying to load a stripped down version of the OS but can't port the Save states from the original SD to the new one. Any advice or tips on how to get them to port? When I launch Pokémon Fire Red the 6 Save slots and load slots are empty even with my copying the .sav...
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi