When you get an American immigrant visa, how long will it take you to enter the country, when will you get a green card after you enter the country, and what are the rules after you get it? Like going

When you get an American immigrant visa, how long will it take you to enter the country, when will you get a green card after you enter the country, and what are the rules after you get it? Like going back to China or something. After the visa is completed, you must enter the country within 6 months; The green card will be sent to your residence in the United States within 1-3 months after entry; After getting it, there are no rules. You can go back to China at any time. When you return to China, you can use your China passport.

I got a green card in the middle and late of the second month after I arrived in the United States.

I hope my answer can help you. If you have any questions, you can keep asking. This is my own experience.