lsapi supports some features of cagefs I don't see in use with in cloudlinux. Specifically LSAPI_CAGEFS_NO_SUEXEC which I set with env variable LSAPI_LVE_ENABLE=3
This is useful to drop privs of php running on an account on specific folders. For instance I can drop wordpress sites permissions to run as the apache user (nobody) for all folders except wp-admin and keep them with in cagefs. This allows functions in wp-admin to work easily as user's expect and add a bit more security to wordpress sites by not allowing permissions for write access unless logged in.