Overall good experience. 1 problem solving interview (simply google PM interviews at Facebook, Google etc., it is the same style) followed by a ~5-6h home task (SQL knowledge helpful, but not a must) followed by 1 bar raising interview that focused mostly on CV and past promotions. Revolut wants to make sure you havent spent too much "time in the same senority" and is curious about your key achievements in each step. I personally found it to be a tiny bit weird to be asked about key achievements 8 years back in a role straight out of college that had zero connection with the role I was applying for.
I really enjoyed the takehome task, because it also means you dont have to go through 6+ interviews like e.g. at Amazon.