About 25% of my games are "Intense", and my win rate is 78%. (If you inferred that my win rate isn't very good in the other game shapes, you are correct.) This seems to be telling me something interesting, but I cannot find any good information on exactly what the shapes mean. The insights page just says "that was a serious game!" and the chess.com help pages are not helpful, either. I also struck out trying to google it.
Does anyone know exactly what "intense" means, or what this big outlier might be telling me?

The games 'Shape' is determined by how the game was played. This is the shape of the graph in the Game Review Analysis.
For example, a 'Giveaway' game shape happens when one player was winning, then suddenly lost. Hover over each game shape in the wheel graph to see a brief description of the shape.
In the Game Phases section, you can see your percentage of games that ended in different phases, your accuracy per game phase, and the results of your games that ended in different phases.
from: https://support.chess.com/en/articles/8708925-what-is-insights
/ So I would think that if you look at the Game Review for those intense games, they would have multiple ups and downs.
About 25% of my games are "Intense", and my win rate is 78%. (If you inferred that my win rate isn't very good in the other game shapes, you are correct.) This seems to be telling me something interesting, but I cannot find any good information on exactly what the shapes mean. The insights page just says "that was a serious game!" and the chess.com help pages are not helpful, either. I also struck out trying to google it.
Does anyone know exactly what "intense" means, or what this big outlier might be telling me?