Step 1: Open the Tik Tok application, click the "+"sign, and then click the lightning symbol to record the video. (as shown in the figure below)
Step 2: Click Next to edit the text in the input box. (as shown in the figure below)
Step 3: Click Publish to display the text in the lower left corner of Tik Tok. (as shown in the figure below)
The above is all the steps to solve where the copywriting is set in the lower left corner of Tik Tok. Remember to like it for me if it is useful to you ~