The typical interview process with language-related topics, system design, and test tasks can be done in ~4 hours. After 2+ weeks of interviews, I finally got the message "We're ready to send you the offer, let's discuss". On the call, I was informed that 20 minutes ago(!sic) they canceled this vacancy because of "some business issues" and there will be no offer. You can do your own estimation of "how much their word costs"