Did you know you can basically restream your videos? I did not until now. Most Youtubers use this feature when they are recording a video inside their video.
The way that they do this is by using browser source or a video or a media sources to capture a recorded video to basically stream it.
A lot of reaction channels do it this way also. So basically it is a video that appears inside of a video that will allow you to shrink it and fit it anywhere inside of the recording. You can do this with OBS or Streamlabs.
To get this crystal clear you will use 9000 video bit rate for it. Just a heads up when restreaming videos or anything like that it will be a little slower encoding it live. There is going to be a 10 second delay.