Linux filesystem resizing with NVME LVM partitioned - after cloning/duplication

linux-resize-after-cloning.sh

# let partition take all the extra space
$ sudo growpart <disk location: /dev/nvme0n1> <partition num> # i.e. nvme0n1p3 typically means it is on partition 3

# run a lsblk to validate what you see
$ lsblk

# you should see the partition has grown to consume all the leftover space

# then run pvresize to have your physical volume (on that partition)
$ sudo pvresize /dev/nvme0n1p3

# then run lvm resize command to let your lvm take all the space
$ sudo lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv

# finally, resize your lvm to reflect the new space that has been allocated to that LVM
$ sudo resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv

# profit! to check results
$ df