mount | grep btrfs
/dev/vda1 on / type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=256,subvol=/@)
/dev/vda1 on /var/lib/AccountsService type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=268,subvol=/@varlibacc)
/dev/vda1 on /tmp type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=262,subvol=/@tmp)
/dev/vda1 on /var/games type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=267,subvol=/@vargames)
/dev/vda1 on /var/crash type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=266,subvol=/@varcrash)
/dev/vda1 on /root type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=260,subvol=/@root)
/dev/vda1 on /var/log type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=271,subvol=/@varlog)
/dev/vda1 on /var/tmp type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=273,subvol=/@vartmp)
/dev/vda1 on /var/lib/flatpak type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=269,subvol=/@varlibflatpak)
/dev/vda1 on /home type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=258,subvol=/@home)
/dev/vda1 on /opt type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=259,subvol=/@opt)
/dev/vda1 on /var/backups type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=264,subvol=/@varbackups)
/dev/vda1 on /var/mail type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=272,subvol=/@varmail)
/dev/vda1 on /var/lib/libvirt type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=270,subvol=/@varlibvirt)
/dev/vda1 on /var/cache type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=265,subvol=/@varcache)
/dev/vda1 on /usr/local type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=263,subvol=/@usrlocal)
/dev/vda1 on /swap type btrfs (rw,noatime,compress=zstd:1,space_cache,autodefrag,subvolid=261,subvol=/@swap)