Ludeo Senior Software Engineer interview questions

Had an HR phone screen interview and then I was invited to their offices for an interview with both a team lead and the CTO. I was then sent a take-home task that should take 3 hours but had no actual time limit set. They used Codebyter in this case, One of the "challenges" was to code the bindings in a copy-pasted Tic-Tac-Toe React.js template. Mind you, this was intended for a "senior" position. Another challenge was considered a "backend" challenge where you had to normalize some data, That one was stupidly convoluted and had incoherent instructions versus the given output example, and no tests were provided (the rest of the challenges had that, so it was weird). They didn't care and rejected the rest of the process instead of addressing the issue, I wasn't impressed by this interview process at all and Codebyter is pretty useless. HR and the people I met with were nice though. Considering they are building yet another MERN/Next.js dashboard, the interview process completely missed the mark, but they seemed too arrogant to understand that. I signed up with another company shortly after.