No guys, 3dsbank app doesn't work for me. After I installed 400Gb of games and then installed 3dsbank, I have lost all old installations. I suppose it was expected and designed that way. After I installed and set my first slot in 3dsbank I reinstalled about 50Gb games from the scratch and I see them on my home menu. But when I set a different slot in 3dsbank my home menu stays the same, I see the same installed games (3dsbank app works with no errors, no warnings, no reboot, but it just don't do what is expected).
Blue N3DSXL, Luma v11, 512Gb Samsung Evo