Hikaru V.S Magnus Premove Game FOUND
Hey everyone, this is my third time writing this. Anyways, I saw people were looking for this, including me, and decided to try and find it myself.
I first started off by looking at which account they were playing on; it showed it was Hikaru versus MagnusCarlsen so I looked at Hikaru's account. I sorted accordingly, did CTRL + F, and looked for games with 26 moves. None of them was it, so I went back to the video. I saw at the end, when Hikaru won, that it showed a different name for the winner. In Fact, it showed "markmellow5" and Magnus as "Guest6480826385". If you want to see the original game on chess.com, you can find it here
Below is the PGN of the game, in which you can see the 0.1 increments of the premoves, but also when Hikaru stalled checkmate at the end.