More is not always better
Prepositions and prepositional phrases are enormously powerful and expressive, but as with everything in language, life, and writing, it's possible to overuse them or just plain use them badly.
Sometimes you read a piece of weak writing and think, "This part needs more detail," in which case you might want to expand that section with prepositional phrases.
Other times you can read weak writing and think, "This has way too many prepositional phrases, I can't follow the chain, none of these details matter or make sense, it needs to be cut down."