I had four interviews overall.
The first one was a classic HR interview, and then I had an interview with the person who would have been my manager, after that, I had a more technical interview around NLP technics with one of the heads of Data Science.
After the three first interviews, I have been given a data science assessment which took me a few hours, it was again about NLP. I have completed it, the plan was to discuss it during a 4th interview, but the interviewer did not have the time to review it by then and was not really ready in any aspect, unfortunately.
After this interview, they ghosted me for 10 days, after having insisted, an HR called me to say my application has been rejected because "they doubt about my ability to deal with big data". So I asked for some more comments about my work, hopefully, an interview with the person who reviewed the assessment because it took me a while to complete it, but nothing like this happened.