It is a Douyin app. According to relevant information, in early October 2022, a considerable number of Cantonese anchors made videos to "denounce" Douyin, saying that "Douyin bans Cantonese." There are many anchors with millions of fans who have come forward and said that when they speak Cantonese in the Douyin live broadcast room, the system will pop up a reminder that "the live broadcast contains unrecognizable language and text." Banned and blocked.