Cannot enter in grub

Hi everyone. I’ve installed silverblue since a couple of days and I don’t understand how to access grub menu during boot. I have only silverblue in my system installed as EFI and when I boot it goes straight ti asking my decryption password. If I press ESC during boot I have a menu (EFI?) asking from which device to boot and I have two entry that are both my ssd if I choose the first one it goes to asking my password but I cannot see grub menu. I’d like to know how to see my deployment if I ever need to rollback. Thanks

I manged to see grub menu. I have to enter efi menu and from there open boot menu. Here I choose my ssd and after it starts booting if I press ESC I can see grub.