I dont remember the exact questions.
1st round: online assessment (some time option is given if you are not comfortable with online round then you can choose this round with an interviewer). But I would say, online is better. As they always have repetitive questions.

2 coding rounds:
2 medium questions each round. prepare leetcode medium well, thats more than enough for Amazon, I would say.

1 LLD: (implement some system but not full code was required ->
understand design, SOLID principles are good to know, show off some design pattern in your LLD.

1 HLD (deep dive in past projects and design HLD on extension of past projects) -> Interact more, dont try to provide any crammed solution, go with the flow. no body is right in this round so just start with basic approach ( the most basic I would say) and as per the questions keep on improving, so dont try to over Engineer your design (never) and think 1 problem at a time and put the other issue in the backlog.

and the most important thing: Prepare questions on their principles (situational questions), this is MUST!! You will be judged in every round (be it coding) on Amazon's principles. Dont just create stories, if you are, then create answers to counter questions too. (atleast expect 2 counter questions or extension of the situations your faced).

let me know if any thing in particular you want to know! Happy to help.

Offer post: https://leetcode.com/discuss/compensation/1847941/amazon-sde2-bangalore