Welcome to the Community @Black Belt Bookkeeping.
Project profitability is such an important tool to make sure the budget is on track.
As you mentioned, payroll costs are not applied to the project until payroll is run. If time is adjusted, only the time actually submitted to run on payroll will be applied to the project costs.
Check out this resource for detailed info: Track income, costs, and profitability
Let me know if you have any additional questions, I’d be happy to help anytime.