They ask a lot about some machine learning architectures and details of prior experience and projects, then they ask a technical question, which could be a machine learning algorithm but if you don't know it they can also ask a regular SWE technical interview question

The process started with an HR outreach on LinkedIn, followed by a phone call introducing the team and their work. The main interview focused on my past project experience and included several practical questions related to the team’s business scenarios, as well as one coding question. About a week later, I was told that there was no longer headcount for the role.