The technical challenge is too far from real responsibilities and day to day work. They expect you to know all the technical stack they have and don't take into account your other experiences.

process was very simple and fast .. i got an email from one of the recruitment team to agree on a time for a screening call , i confirmed the call time and he sent me an invitation with a calendar item , then he never showed on the agreed time neither rescheduled or apologized and never heard from him again ..