Question

How to check whether a bucket places event-based holds on new objects by default

Answer 1

Use the following gsutil ls command:

gsutil ls -L -b gs://[BUCKET_NAME]/

Where [BUCKET_NAME] is the name of the relevant bucket. For example, my-bucket.

The response looks like the following example:

gs://[BUCKET_NAME]/ :
  Storage class:         STANDARD
  ...
  ...
  Default Event-Based Hold: On
  ...