AWS has AWS VPC Flow Logs which allows customers to look at unsampled traffic data.

GCP has VPC flow logs which is sampled, however they have Traffic mirroring which is unsampled

Microsoft Azure also has something similar.

The BIG-3 cloud providers have the ability to provide unsampled data to thier customers, so they can troubleshoot any issues and answer questions like the following:

1. Did the data/traffic come into the cloud?

2. If it did - did it get blocked by us or was it allowed through to the Origin?

3. If it was blocked - by what was it blocked ( WAF, APISec, Malicious user detection, Service Polict, Bot Defence )

4. Some PAcket parmeters /fields [ For a good example please look at AWS VPC Flow logs fields here - https://docs.aws.amazon.com/vpc/latest/userguide/flow-logs.html ]

Key thing to keep in note is this is customer exposed abilities and are self-serviceable - no need for them to submit a ticket to get this configured or get a hold of the data.