The interview started with the standard HR phone screen, and then was sent along to the hiring manager. I ended up interviewing with two managers, and then a total of 7 other people via phone and video call.
Unfortunately, the company appears to not understand this role (appearing to repeat a previous failed organization structure), but also never offered feedback. After interviewing with 9 people total, they didn't email or call me to tell me feedback. Weeks later, I emailed to follow up and just got a generic "we went with other candidates".
I guess I dodged a bullet by not being selected, after all.