Amazon QuickSight now enables you to add role-based access policies to QuickSight data sources that connect to Amazon S3 and Amazon Athena. With this launch of the Run-as IAM Role for S3 and Athena, QuickSight account administrators will be able to provide an IAM Role to individual S3 or Athena data sources in their QuickSight account, rather than enabling account-wide access to connect from QuickSight to S3 or Athena.
This is a companion discussion topic for the original entry at https://aws.amazon.com/about-aws/whats-new/2023/02/amazon-quicksight-role-based-access-control-data-sources-s3-athena/