First round screening, second round technical interview that would proceed to a final interview with the CEO if successful. Did not pass the technical in spite of what I felt was a fair solution given the amount of time.

Fairly straightforward. Progressed to second interview, with a technical assessment, which was video recorded. Submitted working solution, but solution was rejected without explanation, similar to other reviews. Wasn't a bad experience, but a little odd. Would recommend others to expect hidden requirements.