LinkedIn Implementation Consultant interview questions

I was approached by the recruiter on LinkedIn for this position. I went through 3 rounds of interviews including a presentation that I had to prepare. I did not receive any feedback. Instead, I was just told they are still deciding and interviewing other candidates when asking for feedback. Ultimately, I was ghosted by the recruiter, and never heard from them again. This is very odd given that LinkedIn is in the business of helping people find jobs so I was shocked at the recruiting experience.