Meta Recruiter interview questions

I had a phone interview with a recruiter. A week later, the hiring manager emailed me to say she needed to reschedule our phone call. That's fine, except I never received a email from anyone letting me know of a next step or that I was scheduled to speak with a hiring manager. The hiring manager and I exchanged emails and scheduled ourselves to chat the following day. The hiring manager let me know she wanted to move forward and meet with me onsite. A week later the recruiter called and asked for my on-site availability. I received a confirmation email for a day/time I didn't provide and wasn't available. I contacted the recruiting coordinator and Recruiter by email to let them now of the scheduling mistake. I didn't hear back from anyone. I called the Recruiter and recruiting coordinator and left voicemails letting them know of the scheduling mistake. The following day the recruiter called back and said that it was her fault, she gave the recruiting coordinator the wrong dates. A day later, I was scheduled per my availability to come onsite. Onsite, my first interview was a video call, but the video didn't work. I had to find someone sitting near the conference room to troubleshoot, but they couldn't get the video working. The other interviews went smoothly. I didn't meet with the hiring manager I spoke with on the phone which was strange. I was told by the Recruiter she would sync up with the interviewers at the end of the week. I didn't hear back after two weeks. I called the Recruiter and left a voicemail. I didn't hear back for several days. I emailed the Recruiter to follow up again. A day later the recruiter called and said she just spoke with the interviewers that day and feedback was positive but moving forward with others. I had a terrible recruiting experience every step of the way. There were errors and mistakes at every stage. I felt like the Recruiter could care less about my experience or her job.