Why did YouTube unlist all of its past YouTube Rewind videos?

YouTube Rewind may have ended back in 2019, but it seems like YouTube has finally put the nail in the coffin by just unlisting every single one of its annual recap videos.On Tuesday evening, YouTube users in the r/YouTube community on Reddit noticed something odd. YouTube's official channel had marked every single one of its previous YouTube Rewind videos as "unlisted." This basically means that unless you have the actual link to the specific video, the YouTube Rewind videos are now much harder