You're right. It's changed - good. However, you do not need to use custom policies - it's checkboxes on the S3 bucket creation page. And the wording on them is

You're right. It's changed - good. However, you do not need to use custom policies - it's checkboxes on the S3 bucket creation page. And the wording on them is obtuse AF, and I know what I'm doing with AWS IAM.