I use the following on Linux to create things like this: https://vimeo.com/641668961

- OBS Studio to record video

- Google Sheets to keep track of different segments of the video

- ffmpeg to split the original video into separate chunks (one per 'scene')

- openshot to arrange the scenes into the full video (speeding up some scenes and maybe slowing down others)

- (don't remember) for recording voiceovers

- sox for normalizing volume of voiceovers

- openshot for adding the voiceovers in the right spots (with the help of my Google Sheet) and background music