(not an art history student) i took a course on public art in college and it was so interesting!! i used to not have a deeper interest in sculptures (vs paintings ie) and learning about public art made me really fascinated by it!!
there’s a whole body of theory around it, lots of history and controversies, and research around its impacts. most cities and even smaller towns have public art, whether you live in one or visit somewhere with public art i recommend a quick google to learn more!