ansible string bools behave differently when part of an expression

output

ansible-playbook -i inventory/ test.yml

PLAY [localhost] ***************************************************************

TASK [debug] *******************************************************************
skipping: [localhost]

TASK [debug] *******************************************************************
skipping: [localhost]

TASK [debug] *******************************************************************
skipping: [localhost]

TASK [debug] *******************************************************************
ok: [localhost] => {
    "msg": "quote in expression"
}

TASK [debug] *******************************************************************
skipping: [localhost]

TASK [debug] *******************************************************************
skipping: [localhost]

PLAY RECAP *********************************************************************
localhost                  : ok=1    changed=0    unreachable=0    failed=0

test playbook

---
- hosts: localhost
  gather_facts: False
  vars:
    upper: False
    lower: false
    quote: "False"

  tasks:
    - debug:
        msg: "upper"
      when: upper
    - debug:
        msg: "lower"
      when: lower
    - debug:
        msg: "quote"
      when: quote
    - debug:
        msg: "quote in expression"
      when: quote and true
    - debug:
        msg: "lower in expression"
      when: lower  and true
    - debug:
        msg: "upper in expression"
      when: upper  and true