Take QQ version 8.9. 10 of ios system as an example.
Step 1: Open the QQ interface and choose to click a group chat;
Step 2: Enter the group chat interface and click+in the lower right corner;
Step 3: After the option pops up, slide to the second page and select the anonymous option;
Step 4: the chat interface turns black, enter anonymous mode, enter a message in the input box, and click Send;
Step 5: Send messages without displaying nicknames and avatars;
That's all I shared. I hope I can help you.