Hi, GCS engineer here. GCS offered a lot of consistency from the beginning, but we didn't have strong object listing consistency at the beginning. We got that somewhere around 2017 when we moved object metadata to Spanner. See https://cloud.google.com/blog/products/gcp/how-google-cloud-...
Azure had it from the beginning
Azure doesn't let you write more than 20MB/s to an storage account.