I find the autoplay so annoying because it hides the thumbnail which was carefully designed to communicate why I should click on the video and replaces it with, usually, a talking head or stock footage. Often the video gets inexplicably added to my watch history, and if I do choose to click on it I have to go back to the beginning because I missed the start of the audio
The automatically generated thumbnails were often the best at conveying what the video actual is in combination with a title and description that is currently overlooked in place of thumbnails.
These went away when people started gaming the system with a thumbnail frame right in the middle to intentionally misrepresent the content of the video. Same problem with the current YouTuber pog faces. The next step is to automatically generate multiple random frames to preview.
The garbage stock footage doesn’t work well here because it’s not great content to begin with. It’s lazy filler often used to hit the bare minimum arbitrary adsense time limit which wastes countless amounts of user hours.