sdc                         8:32   0  59.6G  0 disk
├─sdc1                      8:33   0     1G  0 part /boot/efi
├─sdc2                      8:34   0     2G  0 part /boot
└─sdc3                      8:35   0  56.6G  0 part
  └─ubuntu--vg-ubuntu--lv 253:0    0  56.6G  0 lvm  /

there are two boot sectors and the second sdc2 is 2GB?