No, developer mode uses different per-boot derived keys so it can't decrypt the retail version of it in dev mode. If I remember right, the "ConnectedStorage" without the "-retail" is the Developer Scratch mounted to D:\ while in Developer Mode.
Saves are stored in ConnectedStorage-retail (XVD) stored on the "Temp" partition for legacy but for Series X/S it'll be on System Support. It's per-console encrypted and no way to get keys at the moment.
Unfortunately, you can't access the...
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