In my case I didn't do a satisfactory initial call with the recruiters to ask them what the interview was going to be about, the level of the folks asking the q

In my case I didn't do a satisfactory initial call with the recruiters to ask them what the interview was going to be about, the level of the folks asking the questions and the possibility of doing it over a few days. They pulled the "we're excited to move forward..." trick, without saying too much about having to talk for 6 hours to very junior devs.