Debian install

fairly new to Linux although I am a previous Mint user, I have bought a new laptop Win 11 and at the moment I dual boot with Zorin 16.2.
I have just downloaded Debian 12 bookworm iso and have used balena Etcher to create A Usb stick. checking the stick and under name it says efi when I open this file it displays two files, boot and Debian. is this correct?
many thanks