Rakuten Project Manager interview questions

Applied via a recruiter who contacted me. Interviews were all around 30-45 minutues, no HR screen. Interviews were either 1-1, or with a manager/TL and a (mostly silent) HR rep. In my final (3rd) interview the manager didn't seem to know why I was there and asked who else I'd interviewed with, which was a quite distracting. Following this the recruiter told me about a week later I'd be getting an offer letter, but when I followed up a week later after hearing nothing, the recruiter said he'd check back with Rakuten, and then told me the application had been rejected. Disappointing, but it seems they're hiring for so many positions as they're growing but also retention is an issue so the recruitment process seems disorganised.

1. HR manager collected the personal information about me. 2. Then an recruiting agent called for interview on a scheduled time over zoom call. 3. This was the preliminary scrutiny kind of thing. the interviewer does a background review kind of thing and mostly gone thorough my experience part and my career aspiration.