I work at a university and the IT here uses a subdomain for every sub-entity like
https://professor.department.faculty.university.tld, which I find highly unusual.
I actually would like a path for a project like https://university.tld/entity/project but they insist on the sub-sub-subdomains. They don't really give a reason. Searching on my own, I only found that a possible negative impact on SEO might speak against stacking subdomains.
Are there other reasons?
Are there reasons for going with stacked subdomains despite it rarely being seen?