They sent an absurd email with smiley faces and giphs galore to multiple applicants at once, using bcc, and asking everyone to sign up for a 3 hour time slot. The email said that they would text you at some point during this 3 hour time frame to join the zoom call for a 20 minute interview. Meaning that they expected people to wait around for 3 hours to be called into an interview, rather than just scheduling interviews for assigned time slots.