Extend Ubuntu Disk

sudo parted -s -a opt /dev/sda "resizepart 3 100%"
sudo lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv
sudo resize2fs -p /dev/mapper/ubuntu--vg-ubuntu--lv

Extend single disk

growpart /dev/sda 2
resize2fs /dev/sda2

growpart /dev/sdb 1
resize2fs /dev/sdb1

https://netshopisp.medium.com/how-to-extend-lvm-disk-on-linux-ubuntu-20-04-35b1c2d5d5e9