Why bucket policy does not provide IAM user to list s3 buckets even bucket policy is set for the user

Question

I have created bucket POC-work from the admin account, and under this policy, I have set policy like below:

{

    "Version": "2012-10-17",

    "Id": "Policy1620674317608",

    "Statement": [

        {

            "Sid": "Stmt1321974214233",

            "Effect": "Allow",

            "Principal": {

                "AWS": "arn:aws:iam::accound-id:user/iam-user"

            },

            "Action": "s3:*",

            "Resource": [

                "arn:aws:s3:::poc-work",

                "arn:aws:s3:::poc-work/*"

            ]

        }

    ]

}

When an IAM user logs in and checks for s3 service there is an error message: You don't have permissions to list buckets.

My questions are :

•  How can I create a bucket policy that enables list s3 buckets?
• Is it necessary to attach policy already defined browsing on IAM console and then rest of operations control with bucket policy?