Access SD via bluetooth on 3.9?

I am new to Proffie and ordered a board to test out but I am wondering about the BT module and it’s usability. I know you can use the phone app or webui with it to set some settings but the main thing I would like to do is to copy soundfonts to the SD via bluetooth and I can’t seem to find the info on whether this is possible with the bluetooth module?

To recap, does mass storage mode on SD work when connecting to board via bluetooth?

No.

It’s theoretically possible to do, but it would be painfully slow.