@Marvin does creating an S3 bucket block in the prefect UI provision the bucket itself or does it need to be created directly in AWS?

Creating an S3 bucket block in the Prefect UI does not automatically provision the bucket in AWS. You will need to create the S3 bucket directly in AWS. The block in Prefect is used for configuration and access purposes, allowing Prefect to interact with the bucket once it exists. For further details on working with blocks in Prefect, you can refer to the Prefect Blocks documentation.