Hi could someone share their experience on the Power Day for C1?

The information that I have recovered from the internet is that consists of 4 rounds. I'm not sure if I'm correct but this is what I found:

1 Code Challenge: Create a Banking system with OOP. (Similar to 2043 LC)
2 Design System: Design a credit card portal. They will ask questions to make sure you know what you did
3 They will show you some code and will ask you to fix it (I have not found too much information about this point)
4 Behavior interview: tipical questions and they might be different. I read that make sure to use STAR method to respond

If someone has already go through this, please share information