Here is in /dev/sdb5:
ls
520f44320ac640c68996d2e055036d31
config-5.3.11-200.fc30.x86_64
config-5.3.11-300.fc31.x86_64
config-5.4.8-200.fc31.x86_64
efi
elf-memtest86+-5.01
extlinux
grub2
initramfs-0-rescue-6e82390ebac04e6ebc14c7543a31c1e8.img
initramfs-5.3.11-200.fc30.x86_64.img
initramfs-5.3.11-300.fc31.x86_64.img
initramfs-5.4.8-200.fc31.x86_64.img
loader
lost+found
memtest86+-5.01
System.map-5.3.11-200.fc30.x86_64
System.map-5.3.11-300.fc31.x86_64
System.map-5.4.8-200.fc31.x86_64
vmlinuz-0-rescue-6e82390ebac04e6ebc14c7543a31c1e8
vmlinuz-5.3.11-200.fc30.x86_64
vmlinuz-5.3.11-300.fc31.x86_64
vmlinuz-5.4.8-200.fc31.x86_64
The efi directory is empty.
Here is what is in /dev/sdb2:
ls
6e82390ebac04e6ebc14c7543a31c1e8
EFI
mach_kernel
System
ls EFI
Boot
fedora
Microsoft