How to delete stopped review app environments

I setup review apps by hosting static sites on s3. I’ve also defined stop-review-app job which gets triggered on merge / close to stop those review apps.

However, I still see those stopped environments piling up under “Deployments > Environments > Stopped”, even though their stop jobs are executed successfully. Do these stopped environments get cleaned up automatically eventually? Is there a potential performance issue if these keep piling up? Is there a way to auto-delete these stopped environments?