I went through 4 interviews and met with 6 different people, most of whom I really enjoyed meeting and felt that I clicked with. The hiring process was supposed to be 4 interviews, but after the 4th one I received an email from the HR representative that they wanted me to do "one final interview" and to provide my availability. When I did so, I never received a response after multiple follow ups, and this was about a month ago. I have to assume they are ghosting me, which is an incredibly unprofessional practice. After 4 interviews, if a company can't even provide the courtesy of a rejection email I think it reflects very poorly on them.