Is my configuration wrong? I keep getting snapshots in the wrong folder

What I think it should be doing is putting the snapshots inside /btrfs_pool/btrbk_snapshots, but its sending some also to /btrfs_pool/ instead.
My config

```
transaction_log /var/log/btrbk_timemachine.log
lockfile /var/lock/btrbk_timemachine.lock
timestamp_format long-iso
backend_local_user btrfs-progs-doas
#stream_buffer 64m
btrfs_commit_delete yes
#
# Snapshots rules
snapshot_preserve_min latest
snapshot_preserve 3d 1w
# Set archiving rules
archive_preserve_min latest
archive_preserve 6d 4w 6m

incremental_prefs "defaults,sao,san,aro,arn"
incremental_clones yes
incremental yes

#preserve_hour_of_day 0
#preserve_day_of_week sunday

# Where the subvolumes are
# home/personal data
volume /btrfs_pool
group fullsystem
snapshot_dir btrbk_snapshots
snapshot_create onchange
subvolume home
subvolume root
# Archive
# Backups destination
volume /btrfs_pool
group fullsystem
# snapshot_create onchange
# snapshot_dir btrbk_snapshots
target_preserve_min latest
target_preserve 6d 3w 2m
subvolume home
subvolume root
target send-receive /btrbk_backups
```

I'm on Fedora 39 Workstation