Classic FM did a surprisingly good mini-series (one of their evening or weekend shows away from the usual standard fare of “safe” classical music) on conductors, showcasing the same piece under different conductors and sometimes at different times (ie the same piece, one version played in the 40’s / 50’s and another version played in modern times) to highlight the different fashions or interpretations of how fast / slow it should be played.
Quite a few conductors will develop a reputation for doing more or less exclusively 2 or 3 composers. Herbert von Karajan for example was regarded as an absolute master with Beethoven.
My Dad (a concert violinist) has some entertaining stories from his orchestra days; some conductors do develop a very over-entitled view of themselves.