In terms of what you are seeking, a benefit. LACs at which mathematics appears among the most popular majors would be more likely to be strongly established in STEM in general.
@VaporeonKid “Would you then, recommend Amherst more than Williams simply because math is a more popular major at the former?”
Amherst and Williams are almost mirror images of each other. Williams actually has more math majors, but either of them will serve you equally well in pretty much any area of study they offer.
@ThankYouforHelp : The figures will vary by year (and, unfortunately, possibly by source), but the site I checked indicates that Amherst in a recent year graduated more math majors than Williams, a difference that would be magnified when considered by percentage.