The way to remove the logo in the upper right corner of the edited video is as follows: Open the video and enter the "Clip" page. Select the original video on the video editing page. Select the original video and enlarge it until the watermark disappears. Select stickers as needed.
You can directly remove the LOGO by cutting off the area without watermark from the video. If you don't need to cut, you can also use the mosaic method, just click the mosaic in the upper right corner. Draw an area to be mosaicked. The drawing area box can be adjusted twice to remove the logo.