This is called “fluff” which I feel is too nice a term for how annoying it is.
Start with a clickbait question, then give a complete history ripped off of Wikipedia, then by the end they don’t even fully answer the question. Very frustrating.
Or install SponsorBlock. One of the things people can submit other than sponsor segments is the most interesting point in the video. Basically, whatever is teased in the thumbnail or what directly answers the question posed in the video title.