On grad school admission: While most universities do have minimum GPA standards for regular admission to grad school (usually a quite minimal standard, like a 3.0 or even a 2.5 undergrad GPA), the actual admitting is done by the graduate programs nearly anywhere.
Look, I flunked out of undergrad, ended up with a 3.1, and still got fully funded in a top-20 (top-3, really) doctoral program in my field. Of course, I also had a 4.0 major and a 3.9ish last 60 hours GPA. But that’s one of the differences between graduate and undergraduate admission—graduate admission is more focused, and so more time can be spent on the details of each application. “Admissions officers” aren’t really a thing in grad school, either—it’s all faculty-run.
Caveat: This is for research-oriented graduate programs. Professional degrees don’t necessarily work this way.