Technical interview initial screening round from US. Followed by design rounds. 2nd and 3rd rounds were more focused on system programming and design scenarios. Was rejected before the coding round

The process started with a standard HR phone call. Next was a conversation with a technical team lead. He didn't allow me to present myself properly - immediately after I shared just 2 brief points about myself, he requested to move to technical questions. He asked me to describe a complex technical project I worked on and questioned me mainly about handling failures. The next stage was a project architecture presentation. I had checked with them in advance, and they were honest about it being an architecture review of a project I had designed. I prepared a presentation. Two interviewers joined - one asked about the project but seemed not to understand parts of it and didn't request clarifications, despite my emphasis that he should ask if anything wasn't clear. He was impatient and didn't let me finish explaining all the project components. He wasn't very patient and jumped straight to questions without letting me explain the complete system flow first. Afterward, they sent an insulting and generic email saying they chose not to proceed. Both during the interview and after, I requested detailed feedback - they disappeared and provided no feedback. Unfair process, and I wouldn't recommend them.