Snap interview questions

Recruiter reached out to me for an Account Executive role. Had a preliminary interview with the recruiter and a 1:1 Group Director/VP level person. After those, there was 4 hours of interviews which were a mix of 6 different account managers/executives, including one interview where you were given a task to present a deck you built based on a certain media planning scenario. Overall, interview process is extremely long and needs to be shortened to be considerate of interviewee's time, especially if they are currently employed. I also asked the recruiter for feedback when I was not given an offer despite making it to the last round and they said they were not allowed to which made it feel like a complete waste of time. I also had to follow up several times after getting ghosted and turned down.