I’m glad you were able to work that out.
Yes, the list is a bit cryptic.
My tentative way of reading it:
You have a SAMSUNG drive, with debian installed there. And the debian entry is for that. The “UEFI OS” entry will be for “\EFI\Boot\bootx64.efi” which is the default for booting a hard drive with no defined NVRAM entries. That’s probably also debian or it could be Windows.
Your USB stick is probably made by Kingston.