Longest hiring process you ever had? Is it worth it?

I was interviewed at a company in January. I assumed I was rejected but I reached out to the HR a month after the interview to make sure as I didn’t hear back.

He said that they actually have a higher management (turns out they are subsidiary which was never public) and they sent out my name to finish hiring process. Days later I interviewed at the mother company too.

Another month had passed after second interview, HR contacted me again to fact check some details about me. And still nothing. I am not waiting for them anymore but come on how slow is this hiring process?? Mind you I am a recent graduate too so it’s not senior role. Two months is unnecessary no? Like if you don’t need me fine don’t interview me twice

This company is also is a top ISP provider in my country.