Every organization and even cloud provider has different requirements that are to be met or are met. Some organizations my need a granular VM pricing whereas other may not. Some cloud providers support things diffferently than other and therefor require the organization to consider the best model they need. Unfortunately there is no one forecasting method that fits all situations.
Cloud spend is variable which is inherently difficult to predict. Specifically engineers can start workloads at any time typically without having to go through a procurement process.
Forecasting cloud-provider consumption as product or service consumption requires specific data and tooling to be consistently available. Billing and reporting from cloud providers is difficult to understand and explain to traditional finance teams.
Workloads need to be clearly defined whether through tagging or account structures so that cost can be attributed back to them and their owners. Please review this page before the exam. https://www.finops.org/projects/accurate-cloud-forecasts/

When planning for FinOps we must assemble resources, estimate, review, plan and assemble people and all this is done in the first stage.
Please review this page before the exam. https://www.finops.org/projects/adopting-finops/

Statement is correct. Remember that FinOps is really about collaboration. Please review the following page FinOps What is?