Europe Arab Bank Operational Risk Officer interview questions

Went through the full four round of interviews. 1) Hiring Manager; went well no issues. 2) Chief Risk Officer; again, no issues. 3) Second Hiring Manager; also okay. 4) HR; no discussion of company culture, benefits, working expectations etc. All questions were generic entry-level ie. How would I adapt to a workplace from a uni environment and manage my workload etc…….. I had graduated 7 years ago at this point and was in the workforce for 6. Told I’d hear back of the outcome within a few days, only to be ghosted and never contacted ever again. Not even a courtesy email to thank me for my time and let me know I wasn’t the preferred candidate. Lol! :-)