As others have mentioned, by definition 25% of admitted students have stats below the 25th percentile for admitted students. Who is among the bottom quartile test scores varies by college.
At Wake Forest, I’d expect students who apply test optional make up a large portion of the lower quartile scores. Note that Wake Forest only reports scores for students who submit scores (on the pages I have seen), so the 25th percentile for the full student body including non-submitters is likely significantly lower than the reported 25th precentile.
You can find some specific numbers for UNC-CH in the lawsuit. . I haven’t read through the lawsuit docs in detail, but skimming through, it appears that in state URMs dominate the lower quartile test score grouping. First gen / low SES also appears to be highly influential. This doesn’t mean everyone in the lower quartile stats falls into these hook groups. There are likely many exceptions for various reasons, including some unhooked.
For example, when I applied to colleges (not recent), I was admitted unhooked to Stanford, MIT, and Ivies with a SAT CR in the bottom few percent It helped to have perfect scores on any standardized test related to math & science while applying as an engineering major, along with the other favorable criteria in the rest of the application, including getting straight A’s in a variety of advanced classes at other colleges. You might find that a notable portion of students who are in the bottom 25th percentile on one section of the SAT are in the top portion on the other like this. This effect can make the bottom 25th percentile combined score for the class different from the bottom 25th math + bottom 25th CR.