Yes, it absolutely shows well-roundedness! You gain so many skills through study abroad, such as resourcefulness, adaptability, cultural sensitivity, openness, humility, communication skills, and so much more! By studying abroad, you will learn to see through a unique lens that many others will not. It's all about how you talk about it, so I suggest you ask your study abroad advisors for advice on how to incorporate it into resumes/interviews and do some googling as well.
For example, here is a good starting point for how to talk about study abroad in interviews that I think may be helpful for you: https://www.gooverseas.com/blog/how-to-talk-about-study-abroad-in-job-interview