Historically cloudrun containers didn't get torn down immediately but stopped getting scheduled on the CPU once the ingress went idle. You'd only get billed for active time. Since 2021 you can have opt for always-on containers.
Correct. The instance stays alive but you only get billed for the time it's actively handling the request/job.
Correct. The instance stays alive but you only get billed for the time it's actively handling the request/job.