First stage is a codility test with easy medium leetcode sent to your email. Subsequently physical rounds of interviews and thereafter acceptance period. There's a timeline for it and not all the time
I applied online. I interviewed at Rakuten (China, ME) in Dec 2022
Interview
First, there is the online coding test you have to take, Then, there would be two rounds of interview, one is the engineer, and the other is the manager. didn't ask me technique questions but ask my experience.
Started with a simple coding question (Leetcode easy) done on a google doc. The attached interviewer/engineer will also probe for your thought process and any improvement to your solutions. It is then followed up by a friendly background interview asking about your past experiences and projects.