Select the settings for your Export Video.
Click "Process" and wait patiently (some exports can take up to 10 minutes)
Once the processing is complete, you can download the video here or via the video link that is sent to your email
Open your video editing software of choice (CapCut, VN, etc.)
Overlay the video onto your camera's video
Find the "Remove Background" setting (this setting can be called differently depending on the software you use)
Select the color "Black" as the background color