My household registration is in Deyang, Sichuan. Can I choose to travel freely in Japan? It used to be said that only Chengdu hukou was allowed. Has the policy changed now?

The question is not whether you choose to travel freely, but what visa you can apply for. What you need for free travel is to apply for a single individual tourist visa in Japan, and your assets need to reach an annual salary of 654.38+ 10,000. Even if you are a non-urban hukou, you can still apply for a single individual tourist visa as long as all the information is complete and the assets are sufficient. The location of your household registration only affects the consulate where you submit the materials, and the consulates with different household registration are different.