Someone I'm "friends" with, recently confessed to me that they very much enjoy watching me fail. I was genuinely surprised because I love watching people win, but I dug into it a bit and apparently it's very common, people really do love to see other people have setbacks, but the research I read seemed to indicate it was more prevalent in friendships, people seem fine with other people getting a head if they don't know them personally. Apparently it's also considerably more common than not for friends to want their friends to fail, or at least take pleasure in their failures. This was all news to me till about a week or so ago, and I'm old. That research actually lead me to this, that I learned is apparently also news to me[1] - "The researchers found that boredom's effects on sadism were mediated by people's desire for excitement and novelty-seeking - essentially, sadistic behavior served as a way to escape the aversive state of boredom." - I sense somehow these two things are somewhat linked.
Some reading:
https://www.researchgate.net/publication/43119265_Envy_and_S...
https://en.wikipedia.org/wiki/Self-evaluation_maintenance_th...
https://www.scribd.com/document/796080571/Document-2
[1]https://news.ycombinator.com/item?id=44068463