There were two rounds: Karat interview and behavioral/technical. The Karat interview is with an engineer from a third party company who was generally pretty nice and patient. First you pick 2 concepts from a list of 5 and you get asked 3 conceptual questions for each. I don't think this part matters because I answered them all pretty much wrong. Next you're given a leetcode easy-med problem. Mine was about hashmaps and i finished in 15 mins. Then I got another porblem about DFS that I didn't get many test cases right for but explained my approach correctly. I think you are given as many leetcode questions as possible until the interview is up. Then, I got an email within 2 days to schedule a final interview with a Walmart engineer. That interview had no coding and the interviewer asked questions about Git practices, your project/internship experience, and behavioral questions about collaboration etc. I head back in 2-3 weeks from the recruiter. Overall, a smooth and un-stressful experience besides waiting so long after the final interview.

Easy. Just be able to communicate. They are more looking for if you are a good fit or not. Study basic leetcode questins like HashMap, dicts. The final round fully depends on if ur interviewer likes you or not