Unfortunately it's not, and it gets more difficult the more cloud-y your app gets.

You can pay for EC2+EBS+network costs, or you can have a fancy cloud native solution where you pay for Lambda, ALBs, CloudWatch, Metrics, Secret Manager, (things you assume they would just give you, like if you eat at a restaurant, you probably won't expect to pay for the parking, toilet, or paying rent for the table and seats).

So cloud billing is its own science and art - and in most orgs devs don't even know how much the stuff they're building costs, until finance people start complaining about the monthly bills.