The process was quick and simple. From the day I contacted the recruiter I had an offer in less than 2 weeks. They'll move the process as fast as you want them to.
It starts off with a phone call with the recruiter just getting to know you, then you'll get sent a leetcode style test with 4 questions (easy/medium). Most people recommend doing the problems in this order 1-2-4-3 since if you get 1, 2 and 4 correct then you'll be sure to pass.
The power day comes next which was 4 1-hour fully remote interviews. The first one was coding (lc easy/medium). The second one was architectural/design. Next was the behavioral (just use STAR method). And the final was the case interview.
Number one advice on all interviews is to communicate, ask questions, and ensure you understand everything before doing any work. The 4 interviewers notes and reviews on you will be the greatest impact on your total comp offer. Great notes and recommendations from the 4 interviewers will help you get the highest comp offer possible.