Thanks for posting reaching out to us here in the Community. I can share some information about the Profit and Loss report in QuickBooks Online (QBO).
Just to confirm, what specific Profit and Loss report did you pull up? If you record the checks written or cash disbursements made, those will show on the report as long as an expense account is listed on the transaction. Note: If only balance sheet accounts are listed on these transactions, they will not show.
For your reference, you can also check out these articles for further guidance:
That should answer your concern for today. Please let me know how if you're referring to something else by leaving a comment below. I'm always here if you need further assistance. Take care and have a good one.