tl;dr I accepted an offer the company sent, but later they revoked the offer without giving any reason nor feedback. One soft skills, coding questions and on later interview some theoretical ML questions. After the final interview I was sent an email with the offer, I accepted it, and so declined other recruitement processes I was going through. Then, two weeks later, I received an email saying: "After additional analysis of the current needs of our team and the organisational plans of MIM Solutions, I regret to inform you that unfortunately we will not be able to offer you cooperation." Just unprofesional and shows lack of respect.