Codeigniter 4 Modules not working properly

I have been trying to setup codeigniter 4 modules but it seems something is not working properly it takes me to 404 or not found.

i have gone through this doc : https://codeigniter4.github.io/CodeIgniter4/general/modules.html?highlight=modules

I have simply installed Ci4 and follow this doc did not tweaked anything else as we do in previous ci 3 hmvc practice.

is there anything else beside autoload ? I'm basic php dev. please guide.

thanks