I applied online. The process took 1+ week. I interviewed at Amazon in Jan 2022
Interview
There was an OA and then there were 2 rounds scheduled in a day. Both of them were DS related rounds and requires medium-high level of understanding in the concepts.
4 interviews
Online: assessment 3 programming questions
On site:
First was general technical with algo and ds question
Second was with managers with system design, algo and ds
Last was the bar raiser with an extremely difficult question
Phone screen, online assessment, and then interviews.
Online assessment is average difficulty, but the interface may be hard and very clunky to use. Being timed didn't help either.
Study leetcode is a must