Why is there no red dot in the text message?

Nowadays, the social attribute of short messages is getting weaker and weaker, the b2c attribute of businesses is getting stronger and stronger, and users pay less attention to the content of short messages, and a large number of new messages bring users a sense of burden. Therefore, the number prompt is cancelled, and the number of unread messages is indicated by red dots. At the desktop icon, the number corner can still be displayed, so that you can clearly see how many unread emails there are at present (you can choose numbers, dots or not to display the desktop corner in Settings-Notification Language Status Bar-Notification Management-Information).