404 default Controller Home 2nd method

is it not possibly to have more than Index method in the default Controller?

No, it is not possible.

Important
You cannot access the default controller with the URI of the controller name. When the default controller is Home, you can access example.com/, but if you access example.com/home, it will be not found.
https://codeigniter.com/user_guide/incom...on-options

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