This video shows how to edit the green screen recording to replace the green screen background behind you with another photo or video background. It is the second video in playlist: "How To Make Green Screen Videos".
The first video "How To Set Up A Cheap Green Screen Studio" shows how to set up an inexpensive recording studio, then record green screen videos.
Links to all equipment and videos mentioned in this video are embedded in the video script at URL: https://www.tomstechnotes.com/greenscree