Sorry for my confusion. Thought YouTube might have a feature I didn’t know about. I do tend to be technically naive at times. I link to playlists since each video is usually part of a set. I just assume that everyone full screens the video when it’s playing, as I do with other YouTube pieces. But thanks for the suggestion. That was kind.
That makes sense. And they may well have a separate slide show feature, apart from a series of still presented in a standard video such as the one you linked to. I really don't know. As for most people regularly clicking full screen to watch videos there, I doubt it.