Amazon

Four, hour-long interviews with a short break in the middle. Interview was with 2 Sr. SDEs and 2 SDMs. Received interview preparation material ahead of time. Interview matched exactly what you can find from online material.

Four virtual interviews, each lasting one hour. All of them included a number of STAR-type questions. Three of them involved coding/whiteboarding. One of them included a system design component.

I only got to the online assessment. The questions weren't hard, just time-consuming. The first was easy, with the second being a little more challenging. I had 15 out of 16 test cases passing for the first, and 8 out of 16 for the second.