Recruiter round, including multiple prep calls, then founder round with a coding challenge, another founder round, CTO round, and a panel final round. Only after the final round did they reject due to job hopping without even asking questions to try to understand what happened, when there were clear explanations available. Why couldn't that have been discussed much earlier in the process, even before the HM level? Wasting people's time like this says a lot about the company's values. Apply to a different company than this one. It will save time, stress, and aggravation.