The comment from bluebayou is probably true a lot of places now. At one time, though, the law school at Berkeley adjusted GPA’s based on the undergraduate school. Someone on CC (years ago) found a link. I think once the list emerged, they were forced to abandon the practice pretty quickly, because the Cal States tended to come out poorly.
Law schools and med schools are GPA driven (plus LSAT or MCAT), which is too bad, because it means that students who are planning on law or medicine need to prioritize GPA optimization over the selecting the courses that would cause them to learn the most (for the most part–there are always a few outliers).