How to connect the mirrored bone to the central bone? I appended a suffix of .L to the name of a bone on one side, then executed armature -> symmetrize to mirror the bones.

However, the copied bone is not connected to the central spine, and if rotated in pose mode it will move away from the spine.

How can I make the copied bone connect to the backbone?
After activating connected in edit mode, the bones are connected.