Is Mandarin or Cantonese spoken in Qingyuan, Guangdong?

Qingyuan locals speak Cantonese, but they can understand Mandarin. Most people can speak Mandarin, except the elderly. But Qingyuan has about 65,438+0 migrants, all of whom speak Mandarin. There are still a few people in Qingyuan who speak Hakka. But they can also speak Mandarin. Please adopt it. Thank you.