You have questions, and we have answers! There are FAQs for the university community and those wishing to learn more about the public facing aspects of BuckeyeLearn.
BuckeyeLearn for the Internal/University Community FAQs
https://admin.resources.osu.edu/buckeyelearn/buckeyelearn-for-learners
BuckeyeLearn for the Public/Community (Extended Enterprise) FAQs
https://u.osu.edu/buckeyelearn/buckeyelearn-publicfacing/