I had an interview process a couple months ago. The team was mostly kind except I knew despite that I did well in the interviews that I did not get the job due to one employee acting very casual during the interview - not asking me follow up questions, taking it from her couch in sweatpants and a sweat shirt and not paying attention to me

3 rounds of virtual interviews. Mixture of behavioural and hypothetical questions tailored around understanding my client management, conflict management, time management, team/collaboration abilities, and general culture fit. 45 minute interviews, 4-5 questions per interview with some follow ups per question, and time for questions at the end. Correspondence throughout is with their recruiter via email

The interview process was your standard interview that was the average length and average intensity of questions asked. You can prepare for the interview similarly to how you would get ready for another interview. Since they are such a large company they have tons of candidates.