Где 10 гигов?

$ df -h --total  
Filesystem            Size  Used Avail Use% Mounted on
dev                   7.8G     0  7.8G   0% /dev
run                   7.9G  1.3M  7.9G   1% /run
/dev/mapper/lvm-root   30G   21G  7.4G  74% /
...
$ sudo fdisk -l
[sudo] password for sergey: 
Disk /dev/nvme0n1: 232.91 GiB, 250059350016 bytes, 488397168 sectors
Disk model: Samsung SSD 970 EVO 250GB               
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 2C078764-A109-48F3-B23E-5992C99E696F

Device             Start       End   Sectors  Size Type
/dev/nvme0n1p1      2048   1023999   1021952  499M Windows recovery environment
/dev/nvme0n1p2   1024000   1226751    202752   99M EFI System
/dev/nvme0n1p3   1226752   1259519     32768   16M Microsoft reserved
/dev/nvme0n1p4   1259520 315832319 314572800  150G Microsoft basic data
/dev/nvme0n1p5 315832320 462632959 146800640   70G Linux LVM


Disk /dev/mapper/lvm-root: 40 GiB, 42949672960 bytes, 83886080 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

$ sudo lvresize -L +10GB /dev/mapper/lvm-root