IMMO Investment Technologies interview questions

Delayed interview process. They won't give us any proper response. At the end, it's our time which will be wasted. Highly recommended to think before proceeding with immo's interview process.

Initial meeting with head of HR, followed by panel interviews for 3 more rounds. Initial meeting with HR gave a brief idea about the org, role and expectations, I appreciate this meeting. The next round was with a peer PM and a tech director, the questions were straight forward aimed at experience, day to day activities and easy. The subsequent round was with hiring manager and a business team member. It also went well, and overall feedback appeared to be positive from the interviewers. I didn't hear back from the HR for a week after this interview, called back and was told that they are evaluating other candidates who are being interviewed parallelly alongside my candidature. I never received a feedback till now and its been more than a month. Very unethical HR practices and ghosting a candidate who spent ample time for the interviews. If you don't select a candidate, why not provide a constructive feedback? or at least inform that my candidature didn't go through rather ghosting?