There were three parts to the first round. The first part was a debugging test. The second was then an algorithm test. The third then was a work simulation with a iq-test like questions afterwards.
If you passed that then you have a video interview that had two Algorithm Questions.
Interview questions [1]
Question 1
For the final round, I got asked Single Number and WordLadder from leetcode
I applied online. I interviewed at Amazon (Seattle, WA) in Feb 2020
Interview
Leetcode easy and 4 stage process. Stages were less than 2 hours each and took a little over a month. There was a online assessment, debugging, behavioral survey, and webcam interview.
The interview process was not bad. contacted, took an assessment, went through two rounds of interviews all on the same day which was a little bit draining but manageable. dont stress too much, know your stuff, but dont be too worried .