It's widespread, but couldn't tell you about other branches. We hired a PhD student to work on a metapaper (a paper about papers) to separate the wheat from the chaff, and she uncovered 11,000 papers that were irreproducable or completely useless. Now think of all the research money and researcher's time that went into those papers. There are other concerns that point to a broken system of "publish, just publish something".

The way we do research is broken. It is disheartening.

Check out Veritasium talking about some of this https://www.youtube.com/watch?v=42QuXLucH3Q