Is there a difference between Shanghai people and Jiangsu people?

What's the difference between all China people is just a matter of ancestral home ~ Authentic Shanghainese mainly live in Baoshan Nanhui Pudong and other districts, while Shanghainese in the city center are generally people who come from the surrounding areas of Shanghai and settle in Jiangsu, Zhejiang and other places, that is, their ancestral home is mostly there ~ You know the rest ~