Think I've heard that the most important part of doing well on Jeopardy is getting your buzzer reaction time perfect.
Once you're on the show, yes. It's an art form to time when Alex finishes versus the window to let you buzz in, and the additional window to put your brain together enough to make a statement.
Then you can go even more into game theory with how Holzhauer played to become such a winning player, but pissed off so many people because of his style. It was more aggressive and less fun to watch. But are you there to win or to make good tv?
But in terms of pure trivia, there's only so many wells they regularly pull from. Last night's tournament had the first final Jeopardy question of "Presidents and the Bible" so there's the need for knowing bible verses again.
And, keep in mind, Final Jeopardy works like the Daily Double. You are wagering between knowing the category, but BEFORE seeing the answer. There's a lot of strategy there, especially if you know your opponents play style and how aggressive they are and if they know how aggressive you are.