Ansible give me strange resutlt in a loop - ansible

Question

I am writing a playbook to check if a list of directories exist but Ansible give me some stranges results when I'am using a with_item loop.
Here is working :
- name: test
ansible.builtin.stat:
path: /home/ansible
register: test
- debug: var=test.stat.exists
Give this result :
TASK [debug] ***********************************************************************************************************************************************
ok: [10.99.93.1] => {
"test.stat.exists": true
}
Now, if I do this :
- name: Check if directory exist
ansible.builtin.stat: path= "{{ item }}"
with_items:
- /home/ansible
register: storage
- debug: var=storage.results
I have this result :
{
"storage.results": [
{
"ansible_loop_var": "item",
"changed": false,
"failed": false,
"invocation": {
"module_args": {
"checksum_algorithm": "sha1",
"follow": false,
"get_attributes": true,
"get_checksum": true,
"get_md5": false,
"get_mime": true,
"path": ""
}
},
"item": "/home/ansible",
"stat": {
"exists": false
}
}
]
}
I don't understand why the "exists" is false.