community.general/samples/test_free.yml

- hosts: all
  strategy: free
  gather_facts: no
  tasks:
  - debug: msg="all hosts should print this"
  - pause: seconds=5
    when: inventory_hostname == 'l2'
  - pause: seconds=10
    when: inventory_hostname == 'l3'
  - debug: msg="and we're done"