Green card is a common name of China people, which mainly comes from the permanent residence permit issued by the United States to foreign citizens. At the beginning, this card was really green, so it was named "green card", but now it is not green. Later, this term generally refers to the permanent residence permit issued to foreign citizens by countries all over the world.
Because of the difference in understanding consciousness, when you go to some countries and tell people about the green card, they don't know what you are asking. Generally speaking, it is permanent residency.
At present, there are not many countries in the world that set this content, only the following (including some similar content, for example, India only accepts people who are foreign nationals but were born in India or have been Indian citizens):
Argentina
Australia
Belize
Brazil
Brunei
Canada
pepper
China (including Hongkong, Macau and Taiwan Province Province, which all have similar settings).
Czech(people)
Denmark
Ecuador
Finland
Germany
Greece
Guatemala
Iran
India
Japan
Malaysia
Mexico
the Netherlands
New Zealand
Norway
the Philippines
Poland
Romania
Russia
Singapore
South Africa
Spain
Sweden
Switzerland
Britain, England
United States of America
Ukraine