The interview process was "cold", it seemed I was alone and no one paid attention at what I said. There was no return from the recruiter at the end of process

You have the 1st phase of CV scanning. Then if you move forward you do 2 type of testing. First is a video recording interview where it show a couple of questions and you have like 1-2 minutes to answer. Then 2nd part is the some games with logic, and numbers. If you are successful in theses testings you move to interview process. The interview is online usually with a RH member and the team lead that you interviewing for. You can have one more interview if need it.