Not necessarily. There are many different types of sports stories, and being a Jeopardy whiz might not be the most typical or widely recognized as the best.
It's a bit difficult to name exact 'book science whiz fiction' as it's not a common term. However, 'Cryptonomicon' by Neal Stephenson has a lot of science and technology elements, and the characters are often very intelligent and quick - thinking when it comes to these areas, similar to what might be expected in a 'whiz' - centered story.
Yes, it could be. With the evolving tastes of readers and the continuous exploration in the field of literature, new genres often emerge. 'Book science whiz fiction' might combine elements of science and the concept of a 'whiz' (perhaps a brilliant or prodigious character in the story) to create a unique fictional experience.
I'm not entirely sure, but it's very likely. TvTropes is a comprehensive database for all kinds of fictional works. Given Konosuba's popularity, especially in the anime and light novel world, it would make sense for there to be a section about its visual novel on TvTropes. You could check by searching for 'Konosuba visual novel' on the TvTropes website.