Interview at Slack

Got an email from a recruiter from Slack. And in the email he asked me to send time and a calendar link. Never responded to any of my follow up emails but I signed up with his calendar link but idk if I trust him to show up to the meeting, and the meeting is in the first week of October. Are all slack recruiters like this? Did I get ghosted? What’s happening right now? On the off hand he shows up to the interview or what not, can anyone tell me what the slack interview process entails? I’m going for a backend role. Is it still a take home project and reviewing a PR? YOE: 6 TC: 135k #tech