A typo in the command cat -s /etc/fstab | grep -v "^#"
?
sudo btrfs subvolume list /
sudo] password for pyro:
ID 257 gen 6569 top level 5 path @home
ID 258 gen 7620 top level 5 path @root
ID 259 gen 4901 top level 5 path @srv
ID 260 gen 7646 top level 5 path @cache
ID 261 gen 7665 top level 5 path @log
ID 262 gen 7493 top level 5 path @tmp
ID 324 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-19_10-17-25/@
ID 326 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-19_10-32-05/@
ID 327 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-19_10-27-04/@
ID 329 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-19_10-52-04/@
ID 333 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-19_12-45-41/@
ID 334 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-19_12-55-24/@
ID 335 gen 7665 top level 5 path @
ID 342 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-20_07-21-17/@
ID 397 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-20_22-25-00/@
ID 398 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-21_06-00-01/@
ID 400 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-21_11-29-42/@
ID 401 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-21_18-50-29/@
ID 405 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-21_19-17-00/@
ID 406 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-22_08-00-02/@
ID 407 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-22_09-41-42/@
ID 411 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-22_16-08-46/@
ID 412 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-22_16-16-11/@
ID 413 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-22_17-19-23/@
ID 414 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-22_18-04-25/@
ID 415 gen 7557 top level 5 path timeshift-btrfs/snapshots/2021-05-22_18-37-54/@petsam
********************************************
lsblk -f
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINT
sda btrfs home 87c47c16-1a13-4817-bf44-c44fbb972670
sdb btrfs home 87c47c16-1a13-4817-bf44-c44fbb972670 639.5G 31% /home
sdc
├─sdc1
├─sdc2 ntfs Games 58CC39FCCC39D54A
├─sdc3 ntfs windows 5AFE4493FE4468F9
└─sdc4 ntfs files C85447D55447C542
sdd
└─sdd1 vfat FAT32 ESD-ISO D402-E3D8
sr0
zram0 [SWAP]
zram1 [SWAP]
zram2 [SWAP]
zram3 [SWAP]
zram4 [SWAP]
zram5 [SWAP]
zram6 [SWAP]
zram7 [SWAP]
zram8 [SWAP]
zram9 [SWAP]
zram10 [SWAP]
zram11 [SWAP]
nvme0n1
├─nvme0n1p1 vfat FAT32 NO_LABEL A1A9-844D 251.5M 0% /boot/efi
├─nvme0n1p2 btrfs f15a81ec-ff38-494a-84b5-3eecb71c82bf 162.1G 25% /run/timeshift/backup
└─nvme0n1p3 swap 1 33ea238d-8c7a-4e75-9053-6baa643cbc95 [SWAP]
********************************************
mount | grep "btrfs"
/dev/nvme0n1p2 on / type btrfs (rw,noatime,compress=zstd:3,ssd,space_cache,autodefrag,subvolid=335,subvol=/@)
/dev/nvme0n1p2 on /root type btrfs (rw,noatime,compress=zstd:3,ssd,space_cache,autodefrag,subvolid=258,subvol=/@root)
/dev/nvme0n1p2 on /srv type btrfs (rw,noatime,compress=zstd:3,ssd,space_cache,autodefrag,subvolid=259,subvol=/@srv)
/dev/nvme0n1p2 on /var/cache type btrfs (rw,noatime,compress=zstd:3,ssd,space_cache,autodefrag,subvolid=260,subvol=/@
cache)
/dev/nvme0n1p2 on /var/tmp type btrfs (rw,noatime,compress=zstd:3,ssd,space_cache,autodefrag,subvolid=262,subvol=/@tm
p)
/dev/nvme0n1p2 on /var/log type btrfs (rw,noatime,compress=zstd:3,ssd,space_cache,autodefrag,subvolid=261,subvol=/@lo
g)
/dev/sdb on /home type btrfs (rw,noatime,compress=zstd:3sudo btrfs subvolume list /,ssd,space_cache,autodefrag,subvolid=5,subvol=/)
/dev/nvme0n1p2 on /run/timeshift/backup type btrfs (rw,relatime,compress=zstd:3,ssd,space_cache,autodefrag,subvolid=5
,subvol=/)