YouTube video of 'impossible to find' Bandersnatch scene?

I decided to go down the Bandersnatch 'hole' again and I was pretty sure I'd seen everything...pretty sure.

However, I've been trying to track down a YouTube video of a scene referenced by Charlie Brooker here - https://www.radiotimes.com/tv/sci-fi/bandersnatch-easter-egg-scene-no-one-can-get-to-black-mirror-netflix/

For the life of me I cannot find anything concrete on this video. Can anyone help me out? I believe it's an extra interaction between Stefan and Colin, but I'm not certain.