Yandex interview questions

The whole process was carried out on LinkedIn and Zoom. In one of the interviews, they sent a message and asked me to do an assignment but did not give any details. When the third interview was done at the end the recruiter was on her phone. In addition, they said that they would get back to me regarding the results that were not received until today (it's been about three weeks if not more) and even when I sent a message to the recruiters I did not receive a response.