I think most of the cost for medium-large sized business are elastic(number of pods, bandwidth cost depends on requests per second, storage cost for many things increases linearly with users etc).
Yep - it seems to depend on the architecture too (e.g. companies that lift-and-shift to the cloud use VMs heavily). We're discussing ideas on https://github.com/infracost/infracost/issues/730, e.g. could CloudWatch be used to fetch the usage so user has context of what those elastic services used last week/month.
