Oops I forgot something!
Although the focus of the video is about Don't Forget, I did begin to cover the theory that the first half of the opening to Deltarune is Gaster, and then it switches to Chara.
It doesn't seem like a very [BIG SHOT] move to bring it up and then fail to mention the similar thing going on with the File Select Screen, but editing it this late in the process is kind of a problem. If I insert a line, it breaks the flow into the line next to it, and desyncs the timing of everything.
So as a sort of compromise-fix I added a bit to the end-part (right before the credits). There's a natural pause in the script there, and it's easier to fix the subtitles closer to the end because there's fewer lines to fix. Why I didn't fix this initially could be a video unto-itself but anyways...
The TLDR is, small change to the video
Here's the new version: https://youtu.be/16KEmGUf_O8
Here's the timestamp: https://youtu.be/16KEmGUf_O8?t=1395