Yes. This is a different feature. I thought it is the same requirement.
Why do you want true balance after bills? Probably because you want to make sure there is enough money in checking to pay the bills. You want to maintain your account minimum balance. For credit cards – it is another way to watch your spending. If your balance is too high – stop spoiling yourself.
These are the reasons to see the rolling total. Though… It is only useful if you include paychecks in the upcoming.
In addition – I find it weird that upcoming payments stop at the end of the month. I budget monthly. But my payments don’t stop with the period end. It is good to see 2-3 weeks of forecast. No matter what today’s date is.
Sorry. I know these are all different features. I am thinking more about the “why?” I would want the feature. Not how it is implemented.